edelbrock 1406, running way rich, how do i tune them?

I'm still struggling with some carb issues. Yesterday my calibration kit came in and i swapped out the metering rods to the .70x.37 which with the stock jets is suppose to give the richest mixture w/ the stock jets and calibration kit.

The engine is still running pretty lean. I went to the middle of nowhere and did a few WOT starts and then checked the plugs. There doesnt appear to be any hint of brown on the porcelean and on the side electrode(curved metal piece) the metal looks to have some heat discoloration.

I richened the idle mixture to 2 1/2 turns out, changed the springs to orange springs, and set the fuel regulator at 5.5psi(was at 5psi) and still the same results.

Timing is still at the same 16-18 initial and 34-36 total.

Also, it occasionally diesels(briefly) when i turn the car off.