Thank you Hog.

On the length of the secondary wires, couldn't you just go up a few mm to compensate for voltage drop?
A little more light for the mushroom!
I'm going to ask one more dumb Q in a "what if" vane....the Ford GT motor has two injectors per cylinder and COP ignition ( I think it don't have a distributor? ) and a blower. I wonder how they drive two injectors and could their ECM and ignition control box ( if it even has an ignition control box? ) be adapted to an LT5?
The way I see it if you want only one injector per cylinder in an LT5 you need the whole top end of the second design motor. It only had one injector per cylinder. Hummmm, I wonder what they used for an ignition system?
Thank you both, Rob and Hog, for putting up with my ignorance.