ZachBreck Posted September 28, 2007 Report Share Posted September 28, 2007 2005 Special Edition, K&N with pro flow, FMF Pipes,(the next is all new) Dune Port, bored .40 over, Noss Head with 21CC Domes. I was running 280s prior to the port, bore, and Head with domes. I am just looking for a guess as where to start the jetting, maybe 320 ish? Any suggestions??? Quote Link to comment Share on other sites More sharing options...
sredish Posted September 28, 2007 Report Share Posted September 28, 2007 it's all up in the air when the porting is changed. a dune port from one person is not equal to a dune port from someone else. you could need a 320 with one port and 350 with another. if you needed a 280 previously, try going to a 330 and see what happens. you could have a need to go richer but maybe not. Quote Link to comment Share on other sites More sharing options...
OnlyA2Stroke Posted September 30, 2007 Report Share Posted September 30, 2007 I just received my cylinders back from RB Racing and I was very pleased. It was a choice for FAST, Herr Jugs, & RB Racing. FAST was behind, so I went with RB Racing because of the customer service, satisfied HQ members & price. I had the cylinders honed for my STD Wiseco Pro Lites & Aggress Dune Port. I almost have the same setup except the bore and I tried 360 & 350 but the plugs were real wet. I am at 340 mains now & going ride a bit tomorrow. So I would start high and work your way down from a 360 or 350. Quote Link to comment Share on other sites More sharing options...
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