How did you get the coil wire to mount on the HEI cap, they don't have a coil tower like the points caps? Or does a modified cap come with the ignition box?

I also bought a ready to run distributor a few years back, couldn't adjust the mechanical as much as they stated and the vacuum was more than twice that advertised.
I sent mine back for a refund. Still have the gear I bought for it to match my roller camshaft, couldn't use the one off my GM HEI as the shaft diameter is a different size.
Not happy with it at all.