What's up everybody. Long time no see, I know. So my truck has had a few changes in the last year-ish. New fuel system, n.o.s. distributor, complete motor re-gasket (and its still leaking out of the damn front case) and a hard body oil pump. So here's the deal. Fuel pressure set at 3 psi on a Holly afpr with a liquid filled gauge, 1.8mm main jets on the r1 Carbs on my l16, and timing set to 13° advanced at idle. One minute it pulls hard, 13.3/1 afr's, next minute, same gear and rpm, it feels flat, and afr's might be 12/1 or 12.5/1
What the hell is going on???