426 kit

[QuadRacer18]

Im running the following:

-White bros. R-4 slip-on
-426 Kit wiseco piston
-11:1 compression
-open airlid with k&n filter
-stage 2 port and polish

my question is, where should i start for jetting, im not even sure what main or pilot is right now because i havent rejetted for my new 426 kit with 11:1 comp piston. thanks, josh

[northwest Texas]

I have a 170 main (I think) and a 42 pilot. My pilot is a little too small as it's screwed out almost 4 turns (I forget exactly). Otherwise mine is almost the same as yours [engine] And I'm roughly 4,000' elevation