cylinder head choices

I just took block into Indy cylinder head to get bored out and I'm just wondering what everyone is running on their magnums as far a heads go. I have the stock heads that came on a running engine but I know they are prone to cracking. So with that said I was thinking of going a different route. Car is gonna be a street /strip car pump gas friendly with 3:55 and I will run a stall. I wanna get the car into the mid to upper 7 sec range which I don't think will be hard in my 71 dart. What heads and cam do you guys recommend and who to get it from at a reasonable price. Thanks