I'm surprized no one mentioned excessive valve guide wear on the Twisted Wedge Heads. I learned this after 18,000 miles, but even John Vermeesch(Total Performance,FRPP hotline) was surprized that I got that many miles out of them before having to replace them. If I had to do it over, Canfield or Victor Jr., maybe even A.F.S.. I think get what you need, then get a little bigger (port size, valve size) for future(nitrous, blower, 351, stroker or all).
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90LX, T-5, Vortech V2-SQ, Holley, Twisted Wedge Stage1, X-303
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