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1976 Eldorado project
1,635 Posts
The Q-jets don't like more than 3 psi. Any more will squeeze its way past the float and all.

It depends on what the pump is rated for. Many are rated in the 7-11 psi range. I am going to be running a Holley Red fuel pump which is 1-4, but will also be using the regulator to be keeping it at 2.5 or so.

So what pump ARE you using?
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