360 Tune Up
With vac advance on manifold vac, initial could have been as much as 22*, which also could have been a problem. If it was only 12- 13 it should not be a problem at all. Depends what happens when in gear.
Here's how that curve compares to the Plymouth timing specs for a '68 340. So it should be ballpark OK.
I agree with Rob. I think it will run better with an initial of 10 plus. (Factory 67 273 was 10* )
With vac advance on manifold vac, initial could have been as much as 22*, which also could have been a problem. If it was only 12- 13 it should not be a problem at all. Depends what happens when in gear.
Here's how that curve compares to the Plymouth timing specs for a '68 340. So it should be ballpark OK.
I agree with Rob. I think it will run better with an initial of 10 plus. (Factory 67 273 was 10* )