Not all, mostly the lower lines of the F- body's, the Z-28, Formula 350, and GTA, had the optional 5.7 rated @ 245HP, I had a 90' Formula 350 with bolt on's it ran 13.40 @ 102 with stock gears and converter. the throttle bodys sucked 170HP!!!!!!
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98'Trans Am LS1 273 gears Whisper lid,K&N,Whisper MAF ends,Flowmaster,Best ET on street tires 13.17 @ 106.49mph
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