Time how much advance is in the distributor, then based upon what you find, weld up a given amount of the slot, for fine tuning will require filing/grinding out of the welded slots. fwiw
well i was thinking about it today and the slants have that second adjustment bolt. maybe i can mess with that and get my intial up to 17* to start then my mech adv of 15* would be 32* pretty close to ur numbers!
well if i ever get a day off work a 60hr week this week, but i will order the light springs (v8 ones work??) and get it set up.