1968 250 6 cyl HEI conversion

[jaw0001]

I have a 1968 250 inline 6 with the big factory A/C compressor. The compressor sits just 2 inches above the top of the stock points-style distributor cap. Has anyone tried to install a large cap HEI in this application? I'm worried the coil-on-cap will hit the bottom of the compressor. There also only seems to be about a 1/2" or so between the stock points distro cap and the side-of-block. There is no reason why the HEI body wouldn't fit at all in there is there? Actually the engine and compressor are from a 1968 Buick Skylark but I figure it would be the same.

Thanks all.