Little engines that can

[Salvatore]

Mountain Motors was/is a term used for IHRA Pro Stock racing. 850 cubic inches of whatever.
Usually the Fords got the most cubes out of their stuff.

The Mountain Motor Nationals at MIR. Fun to watch. Most could not qualify at an NHRA Pro Stock event.

Stock eliminator as of I guess last year can run roller rockers.
Acid porting the heads have been around a long time to.
Next Stocker you look at, see how much flange there is on the head where the headers are bolted to.
Camshafts, same stock factory lift but the duration could go on for minutes.

I remember John Guilus did a 327/340 motor for Abbazia Bros. in their 62 E/S vette a few years back. Saw the car run 10.40's in good weateher allday long. NHRA factored him to death after that. AFB carb too.