TIM LUTZ Posted September 2, 2010 Report Posted September 2, 2010 Putting my top end on tonight. See sig for mods. Only thing that has changed is .020 off the head and a nice dune/trail port job. 1.5mm up on the exhaust, 1mm on the transfers and 5mm on the intakes. Of cores the exhaust was polished, transfer base cleaned up and matched to the upper case and the intake opened up. Running fat at 280 mains before. Any guesses on jetting with this porting? I'll bet I'll need to start at 300 at least. Quote
06specialedition Posted September 2, 2010 Report Posted September 2, 2010 I would go up on the main three sizes, then adjust from there IMO. Maybe try 310's and plug shop. Quote
sleeper06 Posted September 3, 2010 Report Posted September 3, 2010 320 main,27.5 pilots might be rich with that lid on Quote
ohSIXshee Posted September 25, 2010 Report Posted September 25, 2010 (edited) check my sig bone stock 330 mains. loads up a little bit when cold just gotta clear it out. then when warm runs like a top. prob could go to 320 but i rather be a little rich. Edited September 25, 2010 by ohSIXshee Quote
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