My 454 calculates somewhere around 10.25:1 with these and open chamber heads. Somehow I get 210psi cranking pressure. The heads seem to be milled considerably and were not cc'd so maybe that ratio is low?
My 454 calculates somewhere around 10.25:1 with these and open chamber heads. Somehow I get 210psi cranking pressure. The heads seem to be milled considerably and were not cc'd so maybe that ratio is low?
Tony
1955 Bel Air Sport Coupe
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