Originally Posted By hemi-itis
Originally Posted By B G Racing
Jet until you get fat then back up jet where you feel you get the best performance,then change air bleeds to fine tune what ever circuit need attention.


The SV1 has a High speed & idle air only. I'm tryin to get a grip on when to make a jet change VS air bleed change.

Pro systems told me to go from .028 to .025 with the HSAB which would be about 3 main jet numbers.

Guess I'll always be a tuner fish,,,,,,,,,, work
Interesting and good info up. The build sheet from pro-systems on my carb (950AN main body) gave me a range on high air and idle air ( high was 33-24 lean-rich and idle was 93-70 ). Think that run was with high = 24 and idle = 70 - both on the max rich side per their build sheet. No range given for the main jetting, so I assume they just want me to fine adjust with the air bleeds shruggy. I know we have vastly different set ups, but curious how your build sheet for your carbs reads and if 3 HSAB size change equates to 3 main jet size changes in all cases. Don't mean to hi-jack your post. Trying to learn also. beer

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