Old Cam Dynamics cam GOOD FOR A STREET CAR????

Yes you would. What is your engine specs?
Basically stock but the weird thing is that it has brand new pistons in the stock bore that are for a 73 340 sealed power 3369p and about 0.080 below the deck!!!! The stock 69 pistons were "I think" 10.5:1 so why would he have not used them? Especially with that cam?