Quote:
Originally Posted by GMP
That looks really lean to me, and your plug being grey backs that up. Was that carb modded by RBD? I know he likes to cut the slides to #8 and use the C series needle, but on a 250 near sea level it scares me. Make sure the carb is clean and try a richer overall setup. You can try the same needle, or a DDK, but go up to a 180 main with them and try to get a #7 slide. I never saw a 250 that needed a #8 at your elevation.
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my 07 250 came from houston.. close to sea level
rb carb mod.. 7 slide (no idea if it was cut tho ) 45 pilot, 182 main, cek needle ctr clip i think..