'64 394 4bbl timing??

[Jakespeed63]

Hey Fella's what kinda timing ya' running on your 394's?

I been using a vacuum gauge in unison with a timing light. When the vacuum is steady and peaked, light shows almost 30 deg. with vacuum off. When it is set to 12 deg. initial, 28 total runs a bit rough and vacuum drops to 18"hg.

Motor is fresh (2500 mi) cam is close to stock Starfire grind.

Hi-test and octane boost make it very happy.

JT