EFI Question - Impala Tech
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post #1 of 2 (permalink) Old 10-20-2018, 11:00 AM Thread Starter
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Join Date: Jan 2018
Location: Greenville, SC
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EFI Question

This question is for anyone who has installed EFI in their cars. I am going with the Holley EFI and I'm reading through the directions before I start.

The directions say a fuel return line and bulkhead must be installed in the tank and that it must extend down into the fuel to prevent cavitation, bubbles, etc. from being picked up and sent to the fuel pump.

The stock fuel tank on my car already has a return provision that extends to the back inside of the tank as far from the fuel pickup as possible. Is the bulkhead, etc. still necessary or even possible since the tank sits flush with the underside of the trunk pan?

Thanks for any replies.

1968 Impala SS
496 Stroker
T56 Conversion
3.73 Posi-Trac
68WASAGOODYEAR is offline  
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post #2 of 2 (permalink) Old 10-20-2018, 12:04 PM
Join Date: Jan 2006
Posts: 12,687
If it hasa return line now that should be good enough. If you are worried about it or aerating the fuel when it gets lower in the tank use a mat pick up system instead of the stock tube and filter sock.

Big Dave
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