I just picked up a Mallory Unilight to replace PO's dual mag auto dizzy. PO's dizzy worked OK but the timing was erratic (loose shaft). Anyway, I have an F54 block, E31 head, SU's, does anyone have thoughts, experience with advance settings for this dizzy, and/or setup? By the way I picked up the Unilite at Amazon for $311, and last I checked they still had 1ea item left for sale.

I have read the most advance you want to run is 38° fully advanced. 35 degrees is a nice start for your total advance. I'm not sure where that will put you for initial advance. It is best to use a good timing advance light.

You may have to play with it a bit. If it's pinging then you'll want to back off the advance. Some people will advance until it pings and then back off a degree or two.