Originally Posted by
soccerlaw
Also, I'm hearing that the pipe that comes with the promo kit may not be the best suited for the job. I have an 053 and an 0801 pipe. Would either of these run any better or should I just get the JP-4 that most people who don't use the promo pipe seem to be running?
I ran the JP 3 on mine before getting the GRP pipe. The motor ran good with the JP pipe. But I"m leaving my trust in the manufacture and running the GRP pipe. This engine is pretty special. A gallon and a half and still metal pinch with no glow plug in it. I think this will be a multi gallon engine. One thing is for sure, I've never had an engine run this low in temp. and produce so much power at that temp. Just use the bottom end needle on the lean side and it sings!!!!