S&S 107, Upgrade options?

[john sachs]

SO for example in my cas, 107 with S&S 600 cam.

I am on a .33 intermediate jet, and a .76 main with a .50 air bleed.

what would be the starting set up with 3 circuits? sizing wise, and what rpms ranges are the splits then?

I have NO CLUE, without actually working on it. Start small on the thunder jet, see what areas are affected, and work from there. To be 100% accurate, find a good dyno tuner in your area. Seat of the pants, is not too accurate. ANYTIME, I do an engine build, map or tune, it is always backed up with dyno results.

 

[mittens]

So you cant give balpart of what you have seen work on a bike? I know its not going to work for mine but you have to start somewhere

also which part does the new THUNDER jet support mid or high? then you adjust the bleed down to lower or raise the old high speed one?