Vacuum Secondary Conversion

340, sounds like the previous owner must have built it with more stip than street intentions.
You have good parts, the distributor should work well even on the street. Easy to adjust advance rate with different springs and total advance.
Many people run a dp on the street. Probably not optimal for a daily driver. Someone suggested the avs 2, which is a great street carb otb.
Yeah, you may have to get in there for an exploratory to determine piston and cam choices, I would be interested in hearing about what you find.
Sorry that your thread was high jacked a bit, it just headed that way