I know this sounds a little strange considering the 42 pound injectors but it sounds like it's leaning out. What fuel pressure are you running? (by the way, I have no idea what it should be, I haven't figured out my own pressure yet) I've seen both of mine do this.Once when the fuel filter started to plug off and when the fuel pump (on a different car) got weak enough to light the "check engine" light which signaled a lean condition on the computer.
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1986 four-eyed LX coupe, 358 Cleveland, Tremec TKO600/centerforce clutch, dish cut Probe forged pistons, comp cams hyd.roller cam, .579/.588@224/230, Edel.performer, 670 holley street avenger, CPR custom built long tubes, ported and polished 4bbl heads, manley valves, beehive springs, MSD peo-billet dist/MSD6AL, fluidamper, 5 lug conv. with 17x8 bullits there's more but it's still not finished yet.
Oh, and the oldest boy is turning his 89 GT into a FFR cobra this next summer.
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