Originally Posted by RETRO RC

well grizz so far the only engine weve had issues with are the 3port R's but with a couple of pipe changes and a tuning rethink we seem to have that sorted I'm also going to give the short LSN a try in the 3R this sunday to see if it makes any difference.

And as for Fuel mixed with MM oil all i can say is holy crap it changes the performance alot!!!

more consistant idle, runs cooler, spools up faster and the run time increased aswell

Adrian