Well, I get to be odd man out.
I do not worry about jets until exhaust changes. You stated your exhaust is not OEM. I would then have to look at the jets.
I would not consider going larger than a #40 pilot w/o changing the pilot air jet also.
I would not go larger than a #140 main w/o changing the main air jet. Just me. I believe, when you increase airflow, you then need to change circuit volume not air/fuel ratio.
The 'city girl' is now back on the street, after complete dis-assembly of her wiring harness. Perhaps I could arrange to 'scratch 'em off' with one of these modified VN's.
Qtr mile and a 5th gear kick down from 1500 rpm. I am about 70 mi south ao KC. As I have been known to race loaded/unloaded farm tractors (not tractor pull either), I ain't 'skeered' of losing..
Last edited by wmsonta; 07-13-2013 at 01:22 PM.