Bonneville America Forums Forums Technical Forums Performance Mods Back fire on decel-Epco Stainless-Air box removed

I'm running Epco pipes and I'm currently at 130 main/45 pilot jets and 2.75 turns on the idle mixture screws with little to no popping. I'm still running the stock airbox but I'll be removing it soon and installing the Freak kit with the K&N filters. At that point I'll be going up to 150 main jets.