Worked real good on the street. It was an Ultradyne .590/.613 made for 440s in heavy cars.

Yes, mine was one of the heavy ones. 65 Plymouth
Sport Fury at 4000 lbs. Drove it darn near everyday for 4 years.

Now, the Cuda is a different story. Some cams are
just a plain b!tch on the street


Snap your neck, mega G-force launch, is all I want!