Like literally push one through? with just your fingers? That'd be a neat trick.
FWIW while I always do my own engine work you can usually find a mechanic to do a cam install if you look hard enough. I would recomend going with the ISKY 268mega cam at MAX though. Something around 252º would be better for an otherwise stock car but that cam is somewhat liveable with a 283 and will work with "z28" springs.