Purple Cam Design Question

MP purple cams are old but work well. I have a .030 over '71 340 with 2.02 "J" heads with a .509" hyd MP cam in it. It ran 11.98 @ 111.6 MPH in a '73 dart sport (3360 lbs) with a 3500 stall Turbo Action convertor , 727 trans, 4.10 suregrip and 26" tall slicks. I carry car around on a trailer but it could easily be a street driven vehicle.

Maybe if you have the money to invest in modern high flowing cylinder heads then you should get a modern cam, but if you are on a tight budget using the old style heads and cam combo still goes pretty fast at an affordable price!

Bob