More compression worth the cost?
I had a similiar problem and replaced my 88cc chamber heads with 440Source heads for $1000 bucks .Milled them without disassembly..Bumped my compression, shaved 50lbs, increased air flow so i could take advantage of a bigger Cam. I thought about changing pistons, yanking the motor , rebalancing, time and $$$$.
Before I Changed the heads I was trying to figure out Static vs Dynamic Compression vs Quench ...ect...and going back and forth on some forums. (complicated it seems) Finally I said the Hell with it and did it. I Milled them to 68CC's This in conjuction with an inexpensive mech Cam Change and My car runs like a Priest to a "Boys pants half off " sale!
A little trouble with intake alignment even after intake side of heads was milled though but no big deal
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