
Ive got my self a set of MC18 F3 barrels so ive just sent them off for freshen up and i will go from there.
Maybe im asking or exspecting too much from the 300. The last run i did it was making 73bhp with stock carb but with power jets and the hrc jet kit. No good if it cant take a thrashing though.
Still My 21 is still going strong and Im sure the 18 will fly once more with these new barrels. I live in hope, and if all else fails i have my we V4.
Andy says i have great staying power

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If I have to take the carbs off once more...