Hello,
Thanks for all the replies, The spark plug (right one only) was an issue before a complete rebuild by Rudy Kurtz at Port Magic. I have not had a chance to break in the motor yet and do not know if it will happen still. I was just looking to get one to be safe, but looks like it may not be needed. I have +4 timing, CPI inframes, 20cc domes, Port magic dune port, V2 reeds, 35 mm Mukuni's, K&N 8" pods, lightend flywheel, trued and welded crank, shift star mod, cases are match ported as well, and runing 91 pump gas with Klotz R-50 at 40:1. any input is always helpful thanks. :thumbsup: