Been having a hell of a time getting my car to run after swapping in a Holley Hyperspark distributor and enabling timing control in the ECU. If I put the motor on TDC and then phase the distributor with the clear plastic cap it puts the rotor past #1. Timing is way over advanced. Can't turn the distributor back because it eventually bumps into the head . Even if it didn't hit the head this negates using the clear cap.

Motor was running fine with verified timing before on an MSD Pro Billet. Reason I decided to replace the MSD is to get advance at cruise.

What the hell am I doing wrong?

EDIT: Using an MSD 6AL ignition box with this setup and not the Holley, if that matters...