paul g

Sorry I didn't explain that properly. I have pistons (and rings) with no markings on them which should go into B barrels. I'm interested to know if I can run them in A barrels. Do you know if HUNTN1 is correct about the A barrels having a greater clearance/larger diameter than the B barrels?

Queensland Raceway is mainly a couple of long straights (boring track but easier for a beginner to learn). I'd like to run bigger clearances to reduce the chance of an engine cease. Apparently there is a post about this but I can't find it.