Has anyone tried a cfs carbuater . Custom made, I got a 950 qf and it has 83 in front and 90 in back and doing ok but idles a little lean and when driving normal runs rich can't figure out how to dial in just right , I put some 80 in front other day and ran great afr was dead on , but my builder said take out put others back on n afraid to much heat in cylinders he said that we're they were the coolest with 83 jets in there on Dyno