I killed the lower cylinder on Good Friday.I was running the front head mod,no.10 shortie plug,Tyga pipes and cans,RS coils and leads.I had the bike on the dyno the week before and the guy assured me it was ok.When I purchased the bike it came with a previous dynograph and info telling that it was running 155 mains.When it went pop I had to find the cause so after talking to Mr.Editor (Andy!!)I stripped the carbs to find out that the guy who had supposedly set my bike up on the dyno had not done a thing!It still had 155 mains in it so hence it was running lean.I have now put a HRC carb kit in using 185 in the front and 180 for the rear with B needle 3rd groove and #40 SJ.It is not perfect yet but feels way better.I am now going to book it in with Bob Farnham as he is only up the road from me so he can get it set up perfect.