Quote:
Originally posted by Dave at Pelican Parts
Don't try to choke down the stock FI pump to carb pressures. It doesn't really work in the long term. --DD
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You're right, you cannot do that. The only way you can do it is to remove one of the two springs in the pump's pressure relief valve. You can then regulate it down to about 10 psi, then put an external regulator to further dial it down to about 5 psi. This works, I ran with it for a while before I went to a stock Chevy mechanical pump.