[Jaydee]

After reading that great article on manifold vacuum dizzy. I changed mine from ported to manifold vacuum. The idle is much better and throttle response is quicker as well. Next week it's going on the dyno so I'll be able to tell what the advance is doing. With no load it seems like a lot of advance as I rev it. But I guess it can't ping unless the engine is under load, and as there will be less vacuum the the advance should be less. It all makes sense now.
JD