Paul asked: "Where are you going, and how fast do you want to get there?"
Answer: to the finish line, and, ASAP.
I have had a couple of races in my time, and the A-engine/A-Body cars I've owned have always acquitted themselves amirably in the smallish venues I've tried my hand in.... particularly, with regard to racing against big blocks.
Still, I know I'd probably be better of with a 383/400 with a turbo than this 360/centrifugal blower.
Day after tomorrow, I'll be 71....
This 360 probably will provide all the fun I should have, at my age... LOL!