Bad Miss Issue

Lifted94XLT

Member
Jun 25, 2008
139
1
16
Shawnee, KS
Alright guys, I'm stumped and frustrated.... a coupla weeks ago,I got my car started for the first time and it sounded GREAT!! Then, about four days later, it developed a bad miss, so I checked spark and all was good, then I checked compression and found that I lost compression on #7 cylinder. No Biggie, Got it fixed and back together. It is still missing.... Bad (on about 3 cylinders). I have checked spark and its good and strong, and checked compression and its VERY consistence at 150psi. I've checked fuel and its there. So, Air, check, Fuel, check, spark, check, and still a miss..... so I thought, ok, maybe the plugs are fouled, so to be safe I put a whole new set of Autolite plugs in the car (had NGKs in it originally) with no change..... I don't understand what's goin on. PLEASE HELP!! just fyi, fuel pressure is set at 40psi at idle and I'm not sure about timing, I just know its VERY close to stock (10*) with the spout out. Thanks
 
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