Bonneville America Forums Forums Technical Forums Performance Mods Slight backfires, intermittent idle & stalling???

I'm Still getting a bit of a stall when starting out from a stop from a warm idle. I found a fuel pump tester/vacuum guage @ harbor freight for $9.99. The vacuum guage reads up to 28" Hg (inches of mercury) I figure it's $20.00 for a pair of em & well spent if they will work in syncing the carbs.