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Challenger 360

Swirl Port Heads

Tech Question Shaun Miller, Ankeny, IA, 1974 Dodge Challenger 360 Hello sir. I have a 74 Challenger, 360, 4spd, 3.55 sure grip,bored 40, KB 107 pistons, hooker headers, MP 284 duration, 484 lift cam with68 overlap, stock 302…

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