Starter choices

If you want an engine that cranks quickly for an instant start, you need a 3 hp starter. Some factory starters were only 1 hp. That hp rating is the power that the starter can produce. Obviously a low HP starter is going to struggle with a high compression big engine. Take no notice of tq ratings for starters, use HP.
The MSD dyna Force is 3.4 hp. Not cheap, but you only buy it once...Tilton also have 3 + hp starters & I imagine so would Power Master.