Quote:

Carb is an 1150 Dominator

IMO, a Dominator carb is less sensitive to jet changes than most 4150 carbs. So to me, a 2 number jet change is very small. The big question is how close you had it jetted for 85º air (say 2500' DA). Going to 55º air (say 500' DA) I would richen it 4 jet numbers.

And as mentioned, the barometric pressure needs to be considered to really know the DA.