mine did that when it was runnin to lean try to bump up the fuel pressure then c if it helps bump till its smokin black then drop it down till it jerks and find a good median that made mine drive good.

Mine does this too. I think it's got a lot to do with the cam. It's been getting worse lately, so today I cleaned the t-body and the IAB valve and it drives much better, but it still bucks some. I've been told a custom chip would clean up the idle and improve driveability, but it's only a problem in rush hour stop and go freeway traffic si I'll just deal with it.

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93 GT, CCM long block, GT40P heads, Crane 2031, 1.7 RR's, Moroso cold air, 73mm Vortech, 65mm TB, Cobra intake, 24# injectors, MSD 6AL, MAC GT40P headers, 2-1/2" BBK H-pipe (w/cats), Flowmasters, 3.55s, B&M Ripper shifter, Black Magic fan, Groundpounder LCA's, Comp subs
13.817@102.45 - 1/4