I am told that I can pick up some HP and obtain a lopier idle by installing 1.6 roller rockers. I have a new ZZ4 crate motor and it has centerbolt heads. Does anyone have any thoughts on this or can give me some part numbers?
Thanks, Craig
I am told that I can pick up some HP and obtain a lopier idle by installing 1.6 roller rockers. I have a new ZZ4 crate motor and it has centerbolt heads. Does anyone have any thoughts on this or can give me some part numbers?
Thanks, Craig
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