Question: What is the highest HP a siamesed port (naturally aspirated) engine has made and can be proven, ie. in a written publication etc.?
My vote is:
Jim Hedrick and Cotton Perry, H/MP Chevy II.
549 HP 1979 Popular Hot Rodding Mag.
Food for thought !
Last edited by Turbo-6; 03/14/09 05:34 PM. Reason: spelling
