Slow Hot Start on 98 Suburban

[mark460]

98 Suburban starts perfect when cold, but after driving and cut it off after a few minutes it acts as though it has a hot soak starter. Thinking it was the starter, I put a new starter and it still does the same thing. Battery voltage hot and cold checks out good. Cleaned battery connection to perfect clean, but still having the problem. To me it feels like the ignition is off firing or something, a few cranks very slow and then it seems to get a little better and starts. I know my cap, rotor and plug wires are old (170K miles) on them. I know I should replace them, but it typically runs very good. Any help would be appreciated.