exgmguy - I thought you were dyno'd on a Mustang Dyno regarding that 309 rwhp number? If so, you would certainly make more (20-30 hp) on a DynoJet.
BTW - I just had Greg (now at Livernois) dyno my 331 (on the Mustang Dyno). Ended up with 330 RWHP and 355 RWTQ on a very safe (12.5:1 a/f) tune. Good guy to work with.
Take it easy,
E
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1991 5.0 LX Coupe - 40,750 miles
331 cu. in. / Tremec 3550 / BFG Drag Radials
12.22 @ 114.31 mph - w/1.89 60'
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