I haven't messed with a compression check. The engine had new pistons and a fresh bore and valve job when I put it together. The heads are 64 cc chambers with stock replacement 400 pistons.They are just stock cast .040 over pistons. I said .030 over before but I forgot it was .040, but obviously that doesn't matter. I stuck that cam in it cause I had it and it sounds good but I'm thinking I may swap it for an "RV" cam sooner or later. The cam is small but has a choppy idle. But to answer the question about the jets,I haven't done anything to this carb but the other one I did. I had the smallest jets they make(I think) in it.63 or 64 can't recall. They were the smallest ones in the jet assortment kit I have...you know the kit they sell that has 2 of every jet up to 99.
Oh well.