This curve from Rick at Mopar Action works great in the 440's I've tuned -
http://www.moparaction.com/Tech/quest/SLOW_CURVE.htmlBob, assuming sufficient octane vs. C.R., you need a curve something close to this:
Under 1400RPM - no advance - set initial at 15 degrees BTDC
2000 - 10 dergees mech (25 total)
2500 - 20 degrees mech (35 total) - all in.
Plus, at LEAST 15 degrees of vacuum advance under light throttle (50 deg. total, 52-55 better).
If it currently doesn't go to full advance until 5500, you're giving up lots of power.
If it currently has less (or no) vacuum advance), you're giving up LOTS of fuel economy and fouling plugs.
Rick
