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Posted

4000 feet and 106 psi sounds right on dot for a stock bore motor right just pipes and filter

so how much can i shave off the head to still run pump91?

Posted
4000 feet and 106 psi sounds right on dot for a stock bore motor right just pipes and filter

so how much can i shave off the head to still run pump91?

 

I would shave 30 off of it and reinstall the head. Check squish, and do a compression check. You can always take more off later but it is kinof hard to put it back on.

 

I think around 40 tho you have to have the chamber reshaped.

Posted

oh and what the hell is squish clearance and how do i measure it?

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