Yes.I didnt once long ago and never got it running,Bought a mechanic after that.
YES
The cams interchange.
comp cams web site.
all depends on wat you want to do with the engine. if you want to tow with it, id recommend a comp cams 268H. if youre wanting as much horsepower as you can get just by changing cam id recommend comp cams xe274H
comp cams magnum 270
It uses a timing chain which drives the cams.
I ground roller cams for Erson, that were up to .650 lift.
Cams Cams
Chevy made several different versions of that engine. It would all depend upon what you are doing with the motor, and how it is built. Contact a camgrinder like, Crane cams, Competition cams, or, a local regrinder. They will help you. This is a critical decision, so, seek help.
Comp cams has a few good cams that can be used with a stock convertor.Like the 268H and the 270 H witch is the biggest cam you can use
cams mom is in this getting rapped right now
The cam will normally last the life of the engine, if the engine is serviced regularly.