yes the g/p's suffer from heat soak, at least every one i've ever owned has.
the worst was the 81 with the w30 455 olds.
what has fixed mine was a good 1k amp battery, not the walmart ones, and a set of 0 or 1 guage cables.
headers aggrivate the issue and i'd recommend wrapping the starter or fabbing a good heat sheild up if you run them.
you may also want to check the timing settings. normally i run the vac adv off of ported vac [ if a port is available] and bump the initial a couple degrees.
with a hot start problem you may end up retarding it a few degrees depending on the cam grind used.
i'd check the base setings regardless and be sure the mechanical advance is not stuck in the advanced position.
re the jetting, it's my understanding that high alt applications run a bit richer jetting to compensate for the poor air quality. being a flat-lander i've only ran into a few situations where this was done and both of them were so cobbed up by the time i got involved that i couldn't honestly tell you if the jetting made a diff or not.
mike
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so many pontiacs, so little time..................
moderator is a glorified word for an unappreciated prick..................
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