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View Full Version : carb jetting help



sheekiller
04-05-2004, 08:56 PM
i know this has been beat to death my problem is i cant get a straight answer .. i built a 416 10.8 to 1 je , stage 2 hot cam , and full xrs only exh sys,did some mild port and polish work matched intake and exh ports,need to know where to go next i have a 172 in it now 42pilot its running a little lean xrs only said a152 was good enough when i said i had a172 and lean conditions they said its impossible can someone tell me whats a good start and needle positoin thanks sheekiller:devil: