Surge in L67 under hi load/hi RPM

[ejukated]

Yep, I seem to have lost a little fuel economy with closing up the plug gaps even though it now revs out cleanly. Doesn't seem quiet as punchy when you nail the throttle from a standing start either but I may be able to fix that by playing with the tune a little more.

try checking the tune when you tip in, might be going rich which will take the edge of the punchyness