89 camaro tbi 305 swap... need help with fuel pumps - Third Generation F-Body Message Boards

ELCAMARO89 · 07-02-2009, 01:08 AM

89 chevy camaro rs 305 tbi swap to 1985 chevy 350 4 bolt main with edelbrock carb 4 barrel i guess 650 cmf?

i have the mecanical fuel pump in the block already but havent drop the tank yet,, once i remove the electric pump what do i put in place of it??? how do i set the mecanical pump and and how much of PSI??? 4:6??? AND how do i do that?? what parts i need to buy...thanks hope to finish it by this weekend.//...

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five7kid · 07-03-2009, 01:23 AM

Welcome aboard thirdgen.org.

There is a sticky in the top section of the Carburetor forum detailing how to modify an in-tank electric pump EFI pick-up for use with an external pump.

You don't need to set the pressure on mechanical pumps. They are self-regulating. A Carter M6626 is a good choice because it retains the return function (helps keep the fuel cooler and avoid vapor lock).

You will have to do some adapting to get the fuel line(s) connected to the mechanical pump.