Well, I have pods and aa stock 4-into-1. I'm currently running 120's and it is just a touch on the rich side. I'd say start there and test it a bit (Plug Chops) to see if that works for you. You may need the 125's, too, with the open header.
As for the Wheelies, I would think you would want a smaller front and/or a larger rear sprocket. What gearing are you running now? Stock? Try dropping the front down one tooth. That will give a little extra grunt on the bottom and not take away too much top end. Remember, though, that these are 30+ year old bikes that are heavy and not realy as powerful as modern machines. Wheelies are going to be tough to get out of them.
