Ok guys, heres a bit of good news.
I went out and bought a lokar 36" LS1 throttle cable
It worked out great and looks very clean and proffesional.
The throttle body adapter is a little brass fitting with a hole and allen screw to tighten down the cable. The round hole in the lt1 tb arm had to be slightly drilled out bigger, slightly.
The brass fitting fit right in, the throttle cable tightened down and fit like a glove. The lokar cable then bolted to the stock tb bracket like a glove and looks very cool. Then at the firewall, i used a bigger washer and otherwise the lokar fittings went right in. Then at the pedal the lokar kit worked by simply heating up the stock pedal end and bending the tab so that it points into the firewall, and the round hole sits left/right, then the lokar bracket accepts the pedal end perfectly and is held in with a small tab and c clips at the ends
All in all it was a very clean install, i had to trim the cable about 10" and it sits perfectly, is fully adjustable and by removing the throttle stop adjuster that was in my car, i get full throttle sweep
Couldnt be happier, the lokar kit cost $60 i think