I have in my car right now the Crane Blue Print RA IV cam, & I've used this cam in the last 4 engines I've built. This cam is the same cam that is / was in my 462, 455 + 30 over. With E-heads performer RPM intake, RA IB cam , 1:65 rolloer tip rockers, Eagle H-beam rod, SRP forged pistons, Crane anti-pump up lifters, dbl roller chain & gears, Eagle cast crank, Pertronix Ign., 8mm Taylor wires, & topped off with an 800 cfm Q-jet,(tricked out) & an M22 with 3:73 rear end,RA IV cast iron exhaust manifolds, in my 73 GTO & it went 11:72 @ 122 mph. This was done on street radial tires.
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