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Discussion Starter #1
i recently pulled a twin turbo 468 out of my 21 ft cheyenne, i rebuilt the motor without the turbos. Its now a 11-1 comp solid roller .070 over and it only spins about 4200 rpm at best..to the best of my knowledge it a 29% overdriven c-500 casale..my question is how much rpm should i see at full pull?
 

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Discussion Starter #2
maybe a better question would be if i were going to change the v drive gears and the prop, since mine has signs of obvious wear, what would be a good combo of gears and a new 3 blade prop..
 
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