after a hard weekends work, and 30-40 bourbons later its all setup. struck quite a few problems, major one was when we had it all setup the first time and went to go take it for a drive, the clutch would stay engaged, i am using the box off the a12. the cause of that was that the flywheel was quite a bit bigger than the a12 one so we changed those overs....after that, it worked very well. only got one problem now, i suspect it is timing but not sure.....when i turn off the engine, it turns a few more times then backfires through the carby....any ideas to what the cause might be? the power difference is quite noticable between a a12 and a15, only mods so far is extractors and cold air intake. will have pics as soon as i found my camera.