Vacume source

[Licensed to kill]

Originally Posted by 40cpe

The 8BA distributor operates off of venturi vacuum, manifold vacum is too high. The 97 doesn't have a port for venturi vacuum. Your friend needs a centrifugal advance distributor. A small block chevy distributor converted for a flathead would be a good choice.

By "venturi vacuum" I assume you mean Ported vacuum and if so then the problem is with the carb model not having posted vacuum, not the number of them.