i just recently put on a DG can on my sled and i started out putting in 250 jets(it had 230s before) because it was running lean. then i put in 270s in and moved the needle up because it was too lean still. now on the bottom end i foul plugs and on the top end i run lean. what should i change?? also i think i have a sticky secondary too because it takes a while to backshift after i hit the gas so could that cause it to load up and foul plugs??