Thanks Don, I would probably go 11.1, I am at 10.7 now with my KRE SD290 heads. I would like to run low 10-maybe a high 9 on pump gas and still drive it like i do now and not split the block

Tall order? I'm really only 3-4 tenths from my goal now with alot less head flow.
__________________
Darby
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2011 1.60 60 ft,
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