Jet size for Mighty Demon 750?
 

The engine is a 327 with
brodix track 1 heads 2.08/1.6
cam is 246 intake duration 253 exhaust with a 108 lsa .510/.507 lift
single plane edelbrok 2972 intake
autolite AR3924 spark plugs
mighty demon 750
1 inch carb spacer and nitrous wet plate

What jet size would you guys recommend? Right now we think the stock jets are way big. 75 and 83

That's a good size cam for a 327.

Try 73/80 with a 4.5" powervalve.

Timming 18 degrees initinal & 36 total