If you do change the starter. I always recommend stepping up to a newer GM PMGR (permanent magnet gear reduction) unit.
For the 153 tooth flywheels , I believe it is a 1995 Camaro with 305 starter
For 168 tooth use a 1996 Silverado with 350 starter.
They are a direct bolt in, are high torq and low weight.
Some older engines (pre 74?) will only be drilled for 2 straight across starter bolts, these require the diagonal bolt. It will need to be drilled and tapped. Easy to do.
Update on the starter. I had already purchased the Summit brand direct replacement which has the ignition bypass built in. No muss, no fuss. It even came with a full load line curve of torque, amps, RPMS.
The RPMs were significantly higher at cold start than the old starter! I assume that the hit starts will be better as well.
Thanks for the suggestions, always learning experience!
