Looking for opinions on Mopar M1 single plane intake

Good mention. It doesn’t take a ton of engine to run the time. Just a well thought out engine in a good set up.
You can dump in a 700 hp engine into a carp car and chassis and run poorly. Bend twist and break stuff.
All the while getting beat by a much lower hp powered car, bare naked car with a lot less power because it is well set up, taking advantage of what it can.