Slow Crank, No Start When Warm

MSD DynaForce or any starter that is rated 3.0 hp or more. Be wary of:
- a company that does not provide a HP rating for it's starters
- cranking tq #s quoted for the starter. Useless.

Just like a certain amount of HP is reqd to move the car, a certain amount of HP is reqd to 'move' [ crank ] the engine.