YOu have a large cam and a low numerical gear 2.73 in the rear on a 350. This has a dp holley carb. Never found that to be a good combination. My 750 dp worked well with a 3500 stall and 4.10 gears. For a DP to be on a unusual build probably will not work best.
If you have 2.xx or 3.23 type gears a edelbrock or AVS style is hard to beat for a driven vehicle.
What do you think of the e curve? My month with it has found that the grommet heats up and falls out of the base. The curves had to be verified cause the base timing would be different when added to the twisted inital. My msd is set at 0,6 for 15 and 35 total at 3000.