This was 91 octane 439" LG port commando motor for MP Engine contest 3 years ago. Made 613 HP @ 6500RPM at Superflow, dunno what peak would have been they only turned them to 6500 max. This is now in a '71 Dart in California.

4.125" offset ground MP crank
Chevy H beams
Chevy Mahle pistons
11.7:1
off shelf 266 @ .050" Crane roller
Edelbrock victor
LG port commando's
850 Mighty Demon

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