I all about the G3 stuff now a days, but pump gas 9.90s I think is just outside of the G3s right now.Maybe something thing in the +400 CI range would get there. Stock rockers are good to 7k rpm .There are a few guys here running in that 9.90 range with much better insight. Apache heads have some great flow potential out of the box.

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Some of us are so open minded they only see their View