Dude that Camaro could be pumping out from a minimum of 350 HP to 500+ depending on the Heads and Cam he used. A stock 300 HP 350 67 Camaro would probably run about High 14's low 15's. About as fast as a average stock 5.0. A properly tweaked 383 is a torque monster and can easily break into the High 12's low 13's so that should be your target speed.
Your best bet, Remove the silencer, get a K&N filtercharger. Then get the biggest NOS shot you can afford. You may have to retard your timing to compensate not sure.
Nothing else I can think of will get you that fast quickly enough.
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Frank W
90 5.0 LX coupe Stone stock Two Broken T-5's at the Trans shop now. First Mod removed Silencer at 99,614 miles.
74 Chevy Laguna Type S-3 305 apart in garage, getting a 454 to put next to it
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