cam and lifter swap
 

yo my friend just got an 82 5.0. and wants to do a cam swap. i was wondering before we buy the cam kit, what type of lifter and what was the lift of the original cam. its a carb he has a 4v holley 650cfm and intake manifold in case yall were wondering. any advice on what lifters they carried and what lift would be good? he wants a noticable rough idle.