440 build questions

One of my favorite cams of all time. Use either iron head, and you can run s basic performance valve spring- you don't need the dual springs and associated head machining. Have the heads redone if the budget allows. Or run Stealths with the valve job corrected and Id replace the retainers, locks, and springs. Will be fine and depending on your car and you, can run WAY into the 12s with the right parts and a heavy street car.