Thanks, I'll do just that. The car was running great the way I had it at 12 initial, but it was sluggish from a dead stop. I am leaving the Orignial "37" stamped weights in place. The springs,although they were from HO Racing are 30 years old and are stiff and a little bend. I will replace with slightly lighter and check the all in. The bushing I have installed in the dizzy is .265 in dia. and "should" give me around 21 of mech advance. I did have the original 2 port vacuum advance can installed, it still hold vacuum, but replaced with newer 1 port can. More testing and trial and error this week. Thanks again for your input!