Seeing how you said the majority of use would be the track and some weekend street use.....something along these lines is what I'm thinking.....
http://www.summitracing.com/parts/hrs-710581-10/overview/make/plymouth
Assuming you want to stay with a hydraulic flat tappet.....I like something in this range. The lift is good and the split duration will help flow on the exhaust side with a full exhaust system. Keep in mind that this type cam probably requires springs that exceed the stock Eddy's for maximum performance, and i would only use it with a upgrade to a good 1.5 ratio roller rocker. Also this is just one of many possibilities.
The other issue is that the entire combo will have to be somewhat coordinated, meaning rear gear ratio, tire diameter, and a decent torque converter.
I've just scratched the surface here.....Putting together a real nice total combination is definitely not as easy as it looks. :D
P.S. Now that we're getting the ball rolling, I know many other opinions will come about.....and that's a good thing.
