Restoring a 340 need advice

Just curious as to why a roller cam in a pretty much stock build? Hydraulic flat tappet and factory rocker arms could get you to your goal and much more budget friendly. A good cam is a Lunatti 703 JMO 65'
Agree ^^^^
Roller cam is overkill and needless expense. Roller tipped rockers might be a good idea but the old 273 style iron rockers are affordable and have no flies on them. Mancini has a couple of good ones to choose from and the PRW 1.5/1.6 stainless steel ones are worth the effort in my opinion. Got to watch for clearance issues if you go big on the springs and the heads may need machining to spring pockets and valve seal seats.