is it worth the effort? (cam)

halifaxhops said
Read it fast 4 degrees at 2200 is easy to do. All in at 50 is doable with a combination of mechanical and vac. Seriously doubt you can get 46 from just a vac advance. If you do let me know how sure it is interesting, never saw one more than 24 at the crank.

I agree, and initial advance is going to be what the combo will take, might have to fill and file the slots on the advance to get the dizzy advance lower. My 340 has 20 initial, any more than that and it kicks back the starter when the engine is up to temp.