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Old 12-13-2010, 03:04 PM
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TBI to Carb conversion

Hey everyone,

My brother in law locked up my 350 in my 1977 Chevy Silverado last year. Through some horse trading, I picked up a good running TBI engine from a '91 Suburban. However, the trade did not include the wiring or the computer.
I removed the throttle body and intake and picked up an Edelbrock 2104 on Ebay. I plan to reuse the HEI distributor and Quadrajet as they both had recent rebuilds prior to the engine failing.
My questions are related to fuel delivery:

1. How much fuel pressure does the engine need?
2. What type of electric fuel pump/pressure regulator is the best for this application?

Thank you in advance for your help!

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Old 12-13-2010, 03:12 PM
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Quote:
Originally Posted by 4speed501
Hey everyone,

My brother in law locked up my 350 in my 1977 Chevy Silverado last year. Through some horse trading, I picked up a good running TBI engine from a '91 Suburban. However, the trade did not include the wiring or the computer.
I removed the throttle body and intake and picked up an Edelbrock 2104 on Ebay. I plan to reuse the HEI distributor and Quadrajet as they both had recent rebuilds prior to the engine failing.
My questions are related to fuel delivery:

1. How much fuel pressure does the engine need?
2. What type of electric fuel pump/pressure regulator is the best for this application?

Thank you in advance for your help!
I can answer this much for you, If you are going to be running a carburator you only need 5 psi for the fuel pressure.

Cole
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Old 12-13-2010, 04:20 PM
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did this in my boat, just used a low pressure electric pump for carbureted engines. If I remember right, got it from napa. Cuts out somewhere around 4.5 psi
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Old 12-14-2010, 08:50 PM
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Thanks, guys. Called my local NAPA store and they have a pump in stock for $55. Gonna pick it up tomorrow.
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