A Guy I Know has a 1990 LX Hatch, he has 3.55s, pulleys & A Whole exhaust & he can run door-to-door with stock ls-1s. i agree, heads cam & intake will do the trick, youll probably be smokin corvettes though. If you want a specific combo, go to users rides & go in the 12-13 sec range, thats the best way to know what combo to use, they usually list everything
Later...
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1988 Mustang GT, T-5
No Smog Pump (Shorty Belt), Dumps At The End Of Stock H-Pipe (Sounds Mean), K&N Air Filter (Stock Air Box, Removed air silendcer), 198.9 rwhp @4200 (235 Motor!!), 285 lbs-ft @2900 (336 Motor!!!).
My Stang This Is What Dynomax Ultra-Flo's Do