Nabdrill

iTrader: (19)

Converting over to carb with my '98 ls1.

Question: Can I use the OEM fuel system to feed the carb and install a regulator? Detailed reccomendations appreciated...

mjcotroneo

iTrader: (12)

was wondering the same thing seeing as how i am interested in doing this

Shawn MacAnanny

iTrader: (12)

Hmm I honeslty dont know. I'm sure you could use the OEM pump setup and a good regulator with a return line and it would work.

RAGENZ28

iTrader: (5)

Yes they make fittings that plug into the stock hoses that adapt it to -AN fittings. The stock lines are a little small though. I ran an efi Pump on mine and used a regulator with a return, but I used bigger lines -10 -8 return.

C5Fire

You will need a Aeromotive 13204 regulator to get the correct fuel pressure. You will also have to have a minimum return line size of 3/8". If it was my car I would go to a 1/2" return line incase I went with a bigger pump in the future.

Nabdrill

iTrader: (19)

Anyone know the output of the stock pump and at what psi, and also what psi is needed for a carb system..... holley 750 4150 HP

camarols1

iTrader: (17)

Holley carbs usually like 7.5 psi at idle.
What is the intended use of the car? HP goal? Nitrous? etc....
An efi pump will need a big return line or you may have trouble keeping the
fuel pressure low enough.
I would suggest a -08 return to keep things happy.
The Aeromotive website has some good charts to explain the required regulator setup.

stevieturbo

If your car has a flow and return line, then it will work just fine.

Ive ran turbocharged carburetted cars using efi pumps on 8mm OD feed and return lines before, with no problems whatsoever.