I know the CC cannot spill over into the regular forum.... but I'm gonna spill some of the regular forum in here. (sorry) As some of you are aware.... we have a bunch of noobs reinventing the simple beauty of the happytime engines. EFI Blueprinting 40+ mph... heard tales of 70 mph (hopefully) nitrous etc etc personally, I don't have the time or energy to talk all the noobs down, before they JUMP! I've been playing with these lil engines for a long time...no stranger to trying to get more. here's a post, describing one good run. (in the pic, note the discoloring of the 'painted' jug.... that's another story... I ran 50:1 amsoil for 7 miles....wfo! scorched the paint, good!! hahaha (clocked at 33 mph, with Dad's Buick...btw) http://www.motoredbikes.com/showpost.php?p=56226&postcount=1 after this one bad assed run, all it would do was 4 cycle... so I put a stock jet back in. My other hotrod experiment was milling a head..... I had a machinest 'friend' take .030 off a head...(fücker charged me 40 bucks) hahahaha (untold) test run.....had good ....really good power!! Midrange.....crack the throttle & almost pull the front wheel off the ground. then the bolt holding the small gear on the crankshaft vibrated loose... mangling the keyway...hahahaha...OOPS !! Then I pedaled home!! :rolleyes7: I think SBP's shift kit is a winner..... takes some of the stress off the lil HT engines. But still... potentially too dámn fast! The big picture is.... there are noobs, prolly good mechanics.....but..... they haven't even seen a HT.... giving advice to other noobs. :ack2: The message is: try to squeeze 4 or 5 thousand miles out of your HT (at a reasonable speed) & buy a new one!! hahahaha :beatdeadhorse5: :rant: Your thoughts, Gentleman?