. Start at 4000-4500 & go up. Testing is the only way to figure out a new combo. .
mrdragster1970 · T/S 368E Joined Jan 1, 2008 · 37,996 Posts #2 · Jul 25, 2008 View full thread . Start at 4000-4500 & go up. Testing is the only way to figure out a new combo. .
