1/4" of play? Wow, that's alot! Make sure that the shop does a thorough job on the heads, ie clean up the seats & valves, etc.
I made 270 rwhp on a dynojet with my B303, ported stock heads & ported cobra intake. You should have no probs attaining your goal.
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91 coupe
3.73's,long tubes,2 1/2" exh,ported stock t-body,ProM-77mm
cobra intake,edelbrock heads,B303,1.72 rr's
36lb inj's,tremec, & a Paxton NOVI 2000!!!
11.020 @128.95 on BFG Drag Radials (275/60/15)
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