I would think the Bomber exhausts would be close to Epcos, increase your pilots up 2 or 4 points too. I'm guessing 146 Mains for a start. Just console yourself, you're going up in jet size with the config change you described. Try some T-Bird Sport needles, they work well for me with no shims. Once you feel your close to optimum, it's Dyno run time to get it perfect.