[whitemustang02]

it all depends since u only have p&p heads u don't probaly want to go to agresive.
also r u loking at doing any valve train work. because you will need new springs with the cam.

and since you r in there you may want to look in to RR's.

once u have it that far apart look at the cam barings, lifters, pushrods, if any thing has wear on it you may want to replace it while you are in there.

if you fill in some aspects like what you r planing, how well p&ped the heads r gana be and such, i can help you rifine the specs for your cam.

 

[whitemustang02]

bigger then 218/224 duration, maybe something along the line of 212/218 or 214/220 would be good for you.

And ya roller rockers or as I say RR’s would be a nice little addition, which may very likely need new push rods for.