I had driven 3 or 4 MaxWedge that were not a stage 3 and they were very fast. This stage 3 light weight was a monster. I think I remember someone saying it was 13 1/2 comp. It was an auto trans. It shook the ground when it started and when put into gear, it raised up about 3 inches like a cat ready to rumble. The sound was unforgetable. Nasty. I grew up in a magic era ( early '60s ) and we had places to open up these cars. We hung out at hamberger stands and bullshited and raced. Cops didn't bother us that much. I consider myself blessed to have lived that.
That unforgettable sound was due to ultra high compression I think in flavors from 11.5:1 up to 13.5:1 some up to 300 + degree duration special cam, with factory Tri Y cast headers good luck if your tying to find a pair of those, very very few left on planet earth, very few made originally. Those were just before production end to usher in the Hemi head over wedge. Oh let’s not forget the square block off plate to make use of quick open headers, Pre electric Zoomies. And for factory lightweight delete radio, heater delete, lexan windows, remove the widow crank regulator, who needs to roll window up and down, delete sound deadening, let’s give the some bitch a acid dip while we are at it to reduce weight.
Some of these cars still race, with a good set of modern slicks, all else factory, those cars can go. Tire technology has improved immensely over the decades. Keep in mind they had about 425 horse, but were about 1,000 lbs lighter than our modern rides, and had great transfer of weight.