well let me give you a update ...
its still doing it and at times it pisses me off badly..
had some free time, I changed out the coil, still the same, I changed from electronic to points still does it, I changed the carby to a holley and it still died out , the problem seem to be when it gets half way in temp , im starting to think its fuel evaporating , because of heat , the radiator seems to be maybe clogged as it wasn't getting to the halfway mark before.. took t for a spin last night and it got to half way started stalling and misfiring , was running like crap.. either the head gasket is on is on its way out manifold leak or just heat issue's other than that I can only think it might be the ballst resitor wire in the loom … read a post from the uk some person having same issues replaced his radiator and it seem to solve it .. so im at a loss...