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Old 12-05-2012, 08:54 PM
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The muthr thempr and BIG MUTHR THUMPR cam actually make very good power
when used in a high compression ratio motor with head flow and LOW restriction Exhaust!.
They need big gears and converter stall and correct distributor setup.
The engine must be able to rev up === valve springs and port flow.

High compression ratio = 's 10.5:1 for sunoco 94 gas.

needs 5.38:1 gears for a 31" tall tire and a 3500++stall
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