I recently bought a 25de+t 32 drives nice, but at 4k rpm with your foot down starts missing like crazy, if I go easy on throttle easy gets to 7k. Running 550cc injectors on 20psi fuel pressure. Changed spark plugs, because the guy I bought it off put $8 plugs in, swapped for iridium's and started better, cyl 6 plug was completely black other 5 were decent. Any help appreciated cheers
