Stopping the knock: Lower compression and ported heads...

I finished up today. The timing was reset to account for the 4 degree cam advance. It fired up quickly and once it was warmed up, it seemed to idle smoother. I did go back and relash the LH bank to the spec on the cam card. I figure it makes more sense to do one change at a time so I'll know exactly what effect each change has. It was raining this afternoon so I have yet to road test it.
I didn't put a vacuum guage on it. I just didn't think of it until I started writing this just now. The idle speed went up about 100 rpms.
Along with trying to make the car more civilized, I'm still working on the Air/Fuel ratio tuning. Now that I have the MP Chrome ECU back in I'll probably go back to using vacuum advance. I'm sure that will improve the burn cycle at idle and cruise speeds