This is topic going from efi to carb and need some wiring help in forum Tech Talk at Northern California Ford Owners  .


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Posted by 89'LXNOTCH (Member # 8810) on :
 
I am changing over from EFI to carb and was wondering who has a diagram of the wiring that needs to be done or if there is a website with instructions on how to do it. Going to use a MSD 6-al box and blaster ss coil. I know the computer and main wiring harness needs to be removed but im stuck there. thanx guys!
 

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Posted by true11 (Member # 9262) on :
 
to make it run just wire up the msd with the right dist an msd dist would be the easy way and use the right fuel pump .you can use the stock fuel pump if you put a return style reg from aeromotive.
 

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Posted by fasthatch (Member # 7277) on :
 
do not use a the stock efi fuel pump the pressure an volume from a stock pump will over flow the bowls of a carb get a holley blue,or black pump an reg it will work like it should
 

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Posted by true11 (Member # 9262) on :
 
no it wont if you use the right return style reg us fast guys run 30 lbs of fuel press at the pump
 

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Posted by fasthatch (Member # 7277) on :
 

quote:

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Originally posted by true11:
no it wont if you use the right return style reg us fast guys run 30 lbs of fuel press at the pump

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quote:

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Originally posted by true11:
what does that have to do with a stock low horse power pump .it can be done whith an aeromotive by pass reg and will only have low press at the carb .i have done it many times when conv fom efi to carb. aeromtive #13301

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quote:

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Originally posted by fasthatch:

quote:

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Originally posted by true11:
what does that have to do with a stock low horse power pump .it can be done whith an aeromotive by pass reg and will only have low press at the carb .i have done it many times when conv fom efi to carb. aeromtive #13301

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gee aeromtive pump is not a stock up is it

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That part number he quoted is for a Aeromotive regulator, not pump. The regulator is adjustable from 3psi to 65psi so you can use it either for a carb or EFI. With the stock pump and that regulator, you can easily run a carb.
 

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Posted by 89'LXNOTCH (Member # 8810) on :
 
Thanx guys but i have the whole fuel system already handled. I have a holley blue pump and 3/8 fuel line and im going to get the mallory fuel tank insert with return line to deal with the in line pump since i had the 255 pump already. Just needed to know about the wiring for the dash to keep the gauges working still and the wiring for starter, alternator, oil sending unit and ignition. Looked on Google and the jason fletcher site is down for the wiring diagram. Thanx again
 

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