Use or don't use vacuum advance on distributor???????????????????
All the lean burn one is is a mechanical distributer. I and others have asked you questions and to elaborate and you won't and then get a attitude basically calling me stupid for trying to learn. If that isn't be a d bag and a know it all I don't know what is.
Hey man, does the thing cut out and then go....? That's called pump shot tuning and ppints to not enough or lean...so what number is on the shooter? FWIW an automatic trans car will usually like a #31 or sometimes bigger if there is a high stall convertor envolved...and the pump cam usually an orange/red/pink color, try the screw, 2nd hole.
If its bogging...whhhhhhaaaaaaaaaaa....then goes...its too much pump shot, smaller shooter or and smaller pump cam profile, white one if I remember right or try no1 hole on red and a 28 shooter....
It it bogs the entire rpm range...then its too rich, jets.
The carburetor isn't too big, though it isn't flowing under 4500 at the velocity a 600 cfm would in which that 600 cfm would enhance the low end snappiness/torque...it would be lacking above 4500 rpm in where the 750 cfm will Piss on the 600.
Tuning, "timing" "lean jetting" can make the diff in lower rpm range next to nothing, same diff between the two tuned the same of course...but the 750 will come out ahead on any high speed acceleration .... Don't know the cam, didn't read the entire soap opra, but there it is in short hand lamens.
As for lean burn distributors...no advance plate if I remember and maybe it was dual pickups one intial and one high speed...but can't remember being that I avoided all that GARBAGE when parts shopping the yards back then.
