I've been fighting a lean condition with my mild 468 BBC. I had a 850 dp on a dual plane and was getting some popping at wot. I've jetted up all the way to 88 on front and back. Plugs still looked to lean. I switched to a single plane and the problem was of course worse. I also lost 300 rpm. I tried a 1050 Dominator with 84's. Still popping. We re jetted all the way up to 87/95 just to see if we could get black smoke. Still lean and popping. Ran into a buddy at the lake who's friend was a mechanic. He did not like my fuel filter set up. I had it in front of my edelbrock hi volume fuel pump instead of after. He seemed to think this would severely worsen my psi. At 4000 rpm I'm only getting 5.5 psi at 5000 it falls to 4 psi. I know I need to move the filter but does it sound like like I might need a bigger/ better pump such as a Clay Smith? Will I then need a regulator? What sort of psi do I need for a lake boat? Right now I have dual inline filters from each tank. I only run one side
at a time. This has been an issue since the tanks were cleaned and had all new fuel lines and parts. No I have not checked the filters yet. Not interested in electric, I would prefer to stay mechanical. Let the flogging begin.