@dxg: Your Duramax sure has a lot of torque! Lovin' it! Strangely the guy who sold it to me said it was a HEMI cuda...
My initial plan for the 70 cuda was to put "it's" 340 back in and supercharge it, but unfortunately we didn't had a 340 lying around. But instead I found a 383 without the air intake:
So I went to the parts store and bought a supercharger kit and a set of holley carbs:
The 383 had a Torqueflite 3-Speed automatic attached to it and I went ahead to the dyno: It has 530hp now!
