1971 GTO 455 at idle
Description
New Summit dual exhaust with Flowtec Headers on 455 Pontiac. Crane Max Velocity HIT284281 cam (234/242 @ .050" / .488 & .505 Lift), mild porting, Holly Street Dominator intake w. 870 Holley Avenger. 4 speed converted to TH400. Need to disconnect the backup lights!
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