I should add that according to the Firecore timing curve chart the timing starts coming on at 1200 RPM and is totally in at 2800 RPM for a total of 25 degrees. This is with 2 silver springs. Adding initial I'm running at 39 total. This is without the vacuum advance hooked up. With the 3.91s I'm cruising around 3100 RPM at 60 mph. Maybe I should back the timing off 2 degrees on the initial and see what happens.[/QUOT
what control box do you have ?? mopar or msd?
