I KNOW,....!
We were lucky that in the 14 years that we raced the sprints, we never Kaboomed an engine. But even today, the IMCA "A" Mods have more expensive engines than a lot of sprints !
The word is, that Sammy Swindle's 410 billet aluminum block and heads is putting out 1,000 HP.
Don't know if that's true,...but so far anyway,...it's a secret. It sure is pretty and sound awesome !