[okiedokie]

Your right about the plugs. That is part of the sorting out that I'm going though, trying to find a plug that will work in all cylinders while still trying to get the right fuel/air mix in the carbs and the timing to where it's most happy.
If I can get the rear plugs to burn like the front , I'll be on the right track.
But the carbs are off the engine right now, getting different throttle end plates put on, so I won't be able to do anything till I get them back ( 2 weeks ). I had to change the linkage because the throttle hung open 3 times while on test drive. The end plates that were on the carbs could not be used with my new ( and better) linkage.
Thanks for advice . Most appreciative.