I liked it because the mechanical advance was adjustable and I had it reduced down to 8* of advance. The Hemi liked that a lot. So now I am re-contemplating what you said, lock the distributor out.

But, I have been down this road before. I have a 7AL and when I did this last time, it kicks back pretty bad. I tried an MSD start retard add on box to the 7AL, and it never worked on the first try, only the 2nd...So I will buy the MSD Distributor, and see if I can make it work with that and light weight springs. If not, then a digital Petronix box it is with built in retard, and a locked MSD. I loose a little spark, but gain some control, and it still beats the Holley efi box...And I have one in the other car, so I have a spare.