Timing curves for MSD Digital E-Curve Distributor?

I ask because I am trying to jet a QF 750 VS on a similar build and trying to figure out the relationship between timing curve and jetting This damn carb cant find an even ground for A/F. It goes pig rich to lean for anything below 2500 rpm
I’m thinking it might be timing related
I have recurved the dizzy for 16 initial and 18 mech advance + 17 vacuum.
I also ordered a new AVS2... lol
I ditched my holley for an 800 cfm edelbrock
I could never get the holley to transition to part throttle
For my street setup the edelbrock was the answer and easy to tune