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The underhood end should mount to a factory installed nipple on the rear of the intake manifold with another piece of rubber vacuum hose. If there is no nipple then plug it into the rear of the carb. If the steel line is missing, then get a piece of brake line and use it. The distance is too far for a piece of rubber hose.This will work for 1986 and below, the 2 link is for 700R4 transmissions. Doing these two mods will remove:ESC and wiring through the firewall, EGR, EGR bleed solenoid and wiring, two TVS (thermal vacuum switches) and 99% of the hard/ rubber vacuum lines. This will basically restore your truck to pre emission. David Hall, Mar 1, 2009.Shop from thousands of parts and accessories to help you restore, maintain, and customize your Chevrolet, GMC, Dodge or Ford truck or SUV. Keep 'em on the road with the right part, right price, right now. ... Air Conditioning Hose Assembly 305 350 Chevy GMC 81-82 Required Quantity: (1) $69.95 ...Feb 27, 2012 · This is a stock new rebuilt 350, stock cam, Edlebrock 2101, rochester q-jet. Unplugged my vacuum advance and plugged the vacuum port on the carb and then set the initial timing to 6 degrees advanced at 600rpms. I then removed the plug from the port on the carb and plugged in my vacuum gauge. in park, at 600rmps the engine pulls 15" I show and discuss that just changing the Modulator may not help anything. that the valve in the transmission case may be the issue. watch this video in its ...This will work for 1986 and below, the 2 link is for 700R4 transmissions. Doing these two mods will remove:ESC and wiring through the firewall, EGR, EGR bleed solenoid and wiring, two TVS (thermal vacuum switches) and 99% of the hard/ rubber vacuum lines. This will basically restore your truck to pre emission. David Hall, Mar 1, 2009.At its core, the Chevy 350 Quadrajet vacuum diagram consists of various hoses and lines that connect the carburetor to other engine components. These hoses and lines carry vacuum signals from the engine to the carburetor, controlling various functions such as the choke operation, EGR system, and idle mixture adjustment.The most common of those, at least with the older GM cars, is the Turbo-Hydramatic (TH) 350, TH400, and 700R4. All three of these gearboxes have earned their stripes over the years, particularly the TH400 as the unit to rely on in a purpose-built drag car. ... The culprit is usually because the original vacuum line running from the intake ...165 posts · Joined 2008. #8 · Jul 26, 2009. If you look at number 25 on the jpeg file I uploaded on the bottom of that T on #25 The manual just states its a Valve secondary injection. Though there is a vacuum hose there that I have no idea where it goes. Hope this help. I would have taken a picture of the engine but I just put the tranny and ...Each clockwise turn of the Allen wrench will add about 1.5 degrees of additional advance above 5 to 7 inches of manifold vacuum. The maximum is about 14 degrees of vacuum advance. If too much advance is added, the engine will either start to knock or ping or perhaps it may surge slightly at very light throttle opening with high vacuum.Small Block Chevy 350 Engine Parts Carb Diagram Vacuum Lines. The Small Block Chevy 350 engine is a classic and popular choice among car enthusiasts due to its reliability and performance. One essential component of this engine is the carburetor, which plays a crucial role in delivering the correct fuel-to-air mixture for combustion.1985 CHEVROLET EL CAMINO. V8. 2WD. AUTOMATIC. 50,000 MILES. I recently replaced the stock 305 engine with a 350. Im not sure Ive got the vacuum lines where there supposed to go. Haynes manual is no help, they say refer to the veci sticker on the fan shroud. Do you have a vacuum line diagram you can send me.5. Soap And Water. Finding a vacuum leak can be as simple as using a soap and water mixture in a spray bottle. You can spray the solution over the system and see where the bubbles are coming from. The water and soap shouldn't be enough to cause harm to the engine, but it should affect the idle. Rebuilding vacuum lines & emissions controls in a 1979 K10 350/5.7. A previous owner intended to register this truck as off-road only or in a non-smog county in CA, and none of the emissions or exhaust were in place when I bought it. I was living in OR at the time so I wasn’t worried, but now that I’m back in CA I’ve been trying to ... 03: The vacuum advance solenoid should now be installed. If you do not have one, contact Zip. They should be able to help you. Step 4. 04: Pre-lube all of the air injector mount holes in the exhaust manifold with anti-seize compound and install the right and left injector tubes. Step 5. 05: Install the check valves to the air injector tubes.The typical cost to replace a faulty transmission vacuum modulator ranges between $150 and $390 for parts and labor. However, the total cost can vary depending on the specific vehicle and who does the work. Parts Cost: The vacuum modulator replacement part itself usually costs between $30 and $150. More complex modulators for automatic ...I show and discuss that just changing the Modulator may not help anything. that the valve in the transmission case may be the issue. watch this video in its ... The Chevy 5.7 Vortec Vacuum Diagram is a visual representation of the vacuum system in a Chevy 5.7 Vortec engine. It shows the various components and their connections, including the intake manifold, throttle body, vacuum hoses, and valves. The diagram is important because it helps mechanics and car owners understand how the vacuum system works ... Fine Lines TTV7101OM- 71-72 Chevy C10/30, GMC C1500/3500, 2wd, 350CID, Turbo-Hydramatic 350; Transmission Vacuum Line; Steel Sale price $28.92 Regular price $32.13 In stockHere is standard load capacity. Here is the heavy duty emissions diagram. Wrenchtech. Category: Chevy. Satisfied Customers: 1,403. Experience: 40 years experience with ASE certification as Master Technician with L1--Repair Shop Owner. Verified. Wrenchtech and 87 other Chevy Specialists are ready to help you.All you need to do is open your propane torch's valve without igniting it and run the tip along with the various gasket locations or vacuum connections. As you do this, listen to the idle. Any ...At part throttle initial, vacuum, and mechanical advance are all added together. Here is an example: Let's start with 10 degrees of initial timing at idle. We add 18 degrees of mechanical advance at 2,400 RPM for a total of 28 degrees of advance. Now let's add 12 degrees of vacuum advance with engine vacuum at 16 inHg.Re: > Vacuum Diagram 1977 GMC K10. « Reply #13 on: February 14, 2006, 08:44:00 AM ». You can plug up a lot of these vacuum ports and it will run very well, probably better gas mileage too. But w/ the egr and charcoal canister and tvs activations and choke, etc, you need these things.C4 Tech/Performance - 1995 Convertible LT1 VEl Camino, baby! Engine Size. 5.3L/4L60E. Hey guys, I'm hookin With headlights in the UP position, remove the hoses from the "T" to the tops of the relays (see 3 in Figure 1). Attach a short length of vacuum hose and your vacuum pump. Pump until vacuum does not increase. Using a vice grip pliers, pinch off the hose so vac-uum is maintained in the top of the relay.Chevrolet Suburban 1500 I have a 1985 Chevy Suburban Silverado. I have a 1985 Chevy Suburban Silverado and I am trying to replace some vacuum lines on this truck i just bout. the people that owned it before me had … read more. Eric. 57,157 satisfied customers. Hello, I have a 1977 350 with 350TH trans. I need a full picture diagram of where the vacuum lines go to on a 1983 chevy 350 chevy engine with a 4 barrel carb no vac advanced on distributor. 1 answer. Chevy …I need a vacuum line diagram for a '78 chevy truck w/ high output 305. The origonal engine was a 350, I used the 350 distributer on the 305 and the vacuum advance does not seem to be working. Any help on the vaccum advance would be appreciated also. Answered in 2 hours by: It’s official: a fully electric Chevy Cor

5444 posts · Joined 2008. #3 · May 24, 2016. I have a turbo 350 and I have my vacuum modulator hooked up to a t fitting with my brake booster and it runs fine there but I have had it hooked up in the past on the timed vacuum port which as soon as your open up the throttle it gets vacuum anyways and it worked just fine.1978 - 1981 Chevy Camaro Transmission Vacuum Modulator Line For TH-350. Transmission vacuum modulator line for turbo 350 automatic transmissions. Exact fit for all 78, 79, 80, or 81 models. ... 1981 Chevy Camaro Transmission Vacuum Modulator Line For TH-350 : Our Price: $ 37.95. PART NUMBER: TRA-533.1978 C10 350 in California. I recently replaced the water pump, and intake manifold in my C10. The EFE-TVS was helplessly rusted into the thermostat housing and had to be replaced. Ive got most …If the distributor has very stiff centrifugal advance springs in it that allow maximum timing to only come in near red-line rpm, the vacuum advance control unit can be allowed to pull in more advance without the risk of exceeding the 52-degree maximum limit. ... 350 Chevy in a 72 Nova Example #1 224 @ 50 cam 9.0:1 compression Iron heads Headers ...5444 posts · Joined 2008. #3 · May 24, 2016. I have a turbo 350 and I have my vacuum modulator hooked up to a t fitting with my brake booster and it runs fine there but I have had it hooked up in the past on the timed vacuum port which as soon as your open up the throttle it gets vacuum anyways and it worked just fine.

It’s official: a fully electric Chevy Corvette is coming — with new battery technology to boost its range, acceleration and efficiency. When it arrives, the battery-electric sports...Turbo 350 Vacuum. I just got my TH350 rebuilt and it is not shifting into third unless I take my foot off the gas. as soon as I touch the gas again it goes into second. The transmission shop is saying that my engine probably doesn't have enough vacuum. It is a brand new crate engine cam specs are.435/.460 and 212/222 @.050.…

Reader Q&A - also see RECOMMENDED ARTICLES & FAQs. JEGS 555-50080 TBI Air Flow Enhancer Features: Up to 10 H. Possible cause: The body of the Tahoe is gone now. I have all the plastic vacuum lines, bu.