Quote:
Originally Posted by hotrodcbx
I have a similar setup, blown 286" flathead. The first thing I would suggest is put a boost retard system in. If you are running only 18 d total that is not enough for the times you are NOT on boost, which is probably most the time. I also don't see the need
102 octane, I run 92 with no problem. I have 12 d initial, 14d centrifigal for a total of 26d.
The boost retard control can be adjusted for anywhere from 1 - 3 retard per lb. of boost. I run mine at 2 d retard per lb of boost. At 5 lbs of boost this will retard my timing by 10d. for a total of 16d at full throttle.
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Are you saying the 18* is causing the high temps?