[quote=lewtot184][quote=Mopar493][quote=lewtot184][quote=Mopar493][quote=lewtot184]
Your tune up is rich everywhere. I agree with the above about using manifold vacuum rather that ported vacuum for what you are doing. You don’t have nearly enough cam to require manifold vacuum at idle. That’s straight crazy.
If the distributor is curved correctly you don’t need (or want) full manifold vacuum adding timing at idle. Did FBO send you a sheet documenting the curve used, or did he just slam something together and send it out the door?
Either way, no way am I using manifold vacuum on the vacuum can for what you have. Second, you need at least 1 range hotter plug and you need to take some fuel away everywhere.