Can you change the throttle body on a 350 TBI?

Modify the throttle body. This one pretty cheap but does require removing the throttle body. UTIMATE MODS . Stock 42mm TBI units flow around 450cfm which if you look at http://www.carburetion.com/calc.asp a stock 350 even with a cam upgrade to increase the powerband to 5500 rpms isn’t going to use much if any more than that stock throttle body.

What should the fuel pressure be on a 350 TBI?

From 370-440hp you need to bump the fuel pressure up on the 454 injectors to the 15-18psi to increase their flow rate to 100lb/hr.

What kind of Head do I need for a 350 TBI?

Another good reasonably priced set of heads that will work nicely without special intakes on a TBI motor is a set of Summit Racing aluminum heads. Great flow number and stock TBI or aftermarket TBI intakes will bolt right on saving you some money. 50 state legal and better flow numbers than vortec heads.

Is there a lift up spring on a TBI?

Spring is known to break on them. take the torq screws out of the top of the TBI and lift up regulator is in the back check spring. ill have to check that out, new idea i havent heard yet.

When does a 1995 Chevy K 1500 350 TBI hesitate?

An expert whose answer got voted for 100 times. Re: I have a 1995 chevy k 1500 350 tbi it hesitates when…

How much horsepower does a TBI fuel pump support?

First I start with a new Fuel pump, STOCK 75lph TBI fuel pump will only support about 230hp before the fuel pressure drops like a rock.

What should the air flow be on a 350 TBI?

On the average 350, I like a intake runner in the 165-180cc range and I like my air flow at.500″ lift to be at least the 225cfm that a vortec head flows. Stock TBI head flows around 175cfm.

First I start with a new Fuel pump, STOCK 75lph TBI fuel pump will only support about 230hp before the fuel pressure drops like a rock.

What are the specs for a TBI crate engine?

4. The cam in the TBI engine is just plain AWFUL. Specs on Stock TBI cam is .050″ tappet lift (intake/exhaust) is 165/175; and maximum lift with 1.5:1 rocker ratio (intake/exhaust) is .382/.402. I got those specs right off the Jegs website selling the new GM replacement TBI crate engines.

On the average 350, I like a intake runner in the 165-180cc range and I like my air flow at.500″ lift to be at least the 225cfm that a vortec head flows. Stock TBI head flows around 175cfm.

How to test the GM ignition control module?

You can find this tutorial in Spanish here: Cómo Probar El Módulo de Encendido GM 4.3L, 5.0L, 5.7L (1995-2005) (at: autotecnico-online.com ). Generally, when the ICM or the ignition coil fails, your GM car or truck will Crank but NOT START.

From 370-440hp you need to bump the fuel pressure up on the 454 injectors to the 15-18psi to increase their flow rate to 100lb/hr.

How to fix a 1990 Chevy 5.7L TBI fuel problem?

It ran long enough to drive up on the trailer while under its own power and it also drove off the trailer on its own power (not that same day I brought home) but you did have to keep foot on throttle otherwise it would stall out and not start again until the next day. 1. New Fuel pump 2. New Fuel filter 3. New Fuel pump relay 4.

What kind of transmission does a 1993 Chevy Silverado have?

This is a Chevrolet Silverado 1993-1994 Rebuilt Transmission. Transmission like new with all OEM updates and includes a torque converter and a 5 Year Unlimited Mileage Warranty . No core charge. FREE Shipping . (989)945-0042

Is the Chevy TH350 transmission a serious transmission?

High performance transmission builders and parts suppliers don’t even recognize this as a serious transmission. More complex to build than a TH350 and far more expensive, especially when built up to handle high hp numbers. Having to run a cumbersome throttle value cable to the carb. linkage.

When did the lock up torque converter come out?

For the 1981 model year, a lock-up torque converter was introduced which coincided with the new EMC control of most GM cars; This version is the THM350-C, this transmission was phased out in 1984 in GM passenger cars for the 700R4. Chevrolet / GMC trucks and vans used the THM350-C until 1986.

How can I increase the horsepower of my GMC TBI?

Add fuel injector or carburetor cleaner to your vehicle’s gas tank every 3,000 miles. This should be done on a nearly empty tank that should then be immediately filled to full to mix the cleaner into the gasoline. This ensures that the car receives adequate fuel at high engine speeds, increasing the amount of power each cylinder produces.

Do you need 350 injectors for a 4.3 truck?

I searched a bit just for funsies. The throttle body between the 4.3, 305, and 350 tbi trucks are all the same, except the injectors inside the TB are different for all 3 engines, so you will need 350 injectors. I’m not sure it’s tat simple . . .

Is there a Chevy GMC 350 throttle body?

Chevy GMC 350 Throttle Body This is a Brand New, Genuine GM, Throttle Body with injectors. This fits 91 – 92 Chevrolet & GMC Pickup Trucks and Vans with the 5.7L (350) engine. See below for specifics. This may work for other years and Trucks as well. The OEM part number for this is 17112508. The AC Delco number is 22-3822.

How much horsepower does a 350 ci Chevy have?

These vehicles featured a 350 ci, 5.7 small block Chevy with TBI (throttle body injected) EFI system and swirl port heads. Producing up to 210 hp in factory spec, this engine can also be retrofitted into an older car with a performance carburetor to produce up to 250 hp.

What is the TBI code on a 1990 Chevy truck?

Consult a service manual or see below for any check engine light code definitions. You can use a late 80’s or early 90’s GM TBI definition. If you have access to a scan tool use a hook up for a 1990 350 cu. in. 5.7L Chevrolet truck. For some scan tools enter VIN 10th“L” 3rd“C” 8th“K”.