[KJ223]

Hi everyone, I have a 75 Pontiac 350 that I’m looking to swap a cam into. It has 6X heads which I assume to be 6X-4 heads since it is a 350 and is from 75. I’m also almost positive it has screw in rocker studs. I’m trying to decide on what a good cam would be for this engine, I think I’ve settled on the summit 2801 cam kit which comes with lifters. I’ve been reading that this is similar to the 068 cam. My question is would this be a good cam for my engine? I have a 4 speed manual with 3.08 rear gears (according to the build sheet) and I’m looking for something that has a good idle sound and pick up a decent amount of power. Would I need to swap the valve springs with this cam? Also, how hard is it to access everything needed considering the engine is in the car? I know I’ll have to remove a decent amount of stuff to do what I need to do. This will be a first cam swap so any advice is much appreciated. Thanks