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Posted

I got both...hjr dune port 4mill that cam went over to make them a dune/drag port and cut the domes 65mm pistons 4mill crank race gas stock carbs shearer inframes. 85+hp 40+ TQ...but Cam will do all my motors from now on....havent seen a complaining customer yet on here....

Posted

I have rebuilt at least 5 hjr motors all different style of porting as per info I was givin from owners everything on port jobs looked identical all transfer durations were the same all tunnel work the same all intake work same ex durations varied very little . There motors ran ok but not impressive

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