I am new to the forum, so I would like to 1st say thank you to everyone who has contributed by taking the time to share their knowledge and experience,it has been very helpful for me,and many others I am sure. I have a 2004 blaster with brand new weisco bottom end and top end ,bored out to 66.5, FMF exhaust with fatty pipe, after market air cleaner with lid off of box. 32:1 mix, oil pump deleted.tors wires cut and spliced into a loop. What type of jetting is needed? There is currently a 290 main jet in now. I am going through the engine break in process and it feels like it's not getting enough fuel or maybe too much. I don't know a lot about jetting but if I am taught or told the right things I can do it right.