Best coil, box , resister combo ?

TrailBeast said
I would like to see a sparkplug if you can get around to it.

From the description you said "under 1k runs like crap until you get on the freeway and open it up"

I'd almost bet it's running way to rich, and the plug will show it.
Id even bet that your exhaust pipe/pipes are black and sooty on the inside.

xx's 2....

Also,, if you're really going to change out the ignition system, I'd put in one of Trailbeast's HEI kits. cheap, reliable, and parts are avail anywhere..

I'd leave the ignition alone, replace that Eddy with a Holley.. probs solved.. jmo