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Gen 4 ls hot start issues

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So I am working on my cammed caprice PPV with a 6.0L L77 in it with a new battery and starter. it cold starts fine but after if drive it when it’s warm and shut it off at the store for about 5-10 minutes it cranks for significantly longer than it should and almost acts like it doesn’t want to start. It has, so far, always eventually started with no throttle pedal input but it is definitely unnerving. What should I be looking to modify in the tune? Thanks

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