[randy]

Hell Dave my question is i have a 72 challenger rebuilding a 440 30 over 906 heads i am thinking about using a mopar hydraulic purple shaft cam 280/280 lift 474/474 centerline 110 basic rpm 2000-5900 if i use a torque converter 2200-2800 will this be a good combination if not what would be good for good power in take off i am using a sure grip 391. Thank you . Randy

[dave-r]

Randy that combo will work fine. Just slightly more power than stock. Probably not enough more to really notice though.

My only problem with it is the use of a MP cam. They are 40 year old, pre-computer designs that are very poor compared to modern designs. There are much better designs out there that give more power over a wider rpm range without increasing duration.

[dave-r]

But then again. With modern cams you really need head work (bigger valves and pocket porting), machined valve guides (due to the high lifts) and headers etc.

So for a budget build the MP cam and combo you have there might be just the ticket.