I have 590 hp and 600 torque in a street Trans am and I run KRE d port heads with 1-3/4 headers, 3" exhaust. 5 speed TKO-600 and the 246/252 cam from Dave. It's a blast. I spin it to 6000 no problem at times. But I run the Solid Crower lifters on a Hydraulic cam. It has tons of torque down low.
I'm not knocking your setup at all, just thinking your leaving lots on the table with those heads. It still will be a fun street car. Other on the board have lots of experience and will sure to chime in..
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68 Firebird. IA2 block, 505 cu in, E-head, Solid roller 3650 weight. Reid TH400 4:11 gear. 29" slick.
Best so far 10.12@133 mph. 1.43 60 ft.
76 Trans am, TKX .81 o/d, 3.73 Moser rearend,
468 with KRE D-ports, Doug headers, 3" Exh.
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