Originally Posted by
Jaz240
do you pull out the break in shim? The 8MM restrictor is too large. Go to 6.5 what fuel are you running? Lower your Throttle EPA to 70%..anything more than that is just wasted power and fuel. also, check your idle. The idle gap should be just a tic opened. somewhere around .3-.4 MM. Use a colder plug like P4 or P5 and then tune around your idle and plug. You would be amazed what happens when its all set up properly..PS. These methods work with all engines.
Im running the thinnest shim, have recently installed a 7mm restrictor and am only using about 60% of the throttle throw. Im running VooDoo 30% nitro and a VooDoo #6 plug (p4) I had heard also that the RE10 pipe was a better suit for this engine but havent had the chance to try it.