Make sure the max mechanical advance (at full advance) does not exceed 36deg BTDC.
Idle timing should be 18 to 24deg.
If you want more initial (24ish) for a more snappy throttle response then limit the advance travel stop
so mech advance is limited to 10-12deg travel. (the stock adv travel limit is 18 to 22deg typical)
Make sure the vacuum advance system does not add more than 15deg at highest manifold vacuum
(deceleration) limit its travel as required Adjust it (rate) so it adds 8 to 12deg at hi speed cruise ( hiway) adjust further as required to avoid ping on throttle roll in from cruise.
Use champion RV8c spark plugs or equal (EG: AC delco R42T) , gap at .035"
A 750 holley will work a lot better if you want power.
Last edited by F-BIRD'88; 08-31-2012 at 11:39 AM.