soft cam lobes?

[79gmcclassic]

hey guys long time no talk! but i got some questions for all you hardcore gm truck guys! i have had my truck for around 4 years now and it has never exactly ran correctly and smoothly, at an idle its the worst it will run really rough and have a hesitation where the truck just wants to go and me and my dad have the idle screw turned slightly up because thats what we thought the problem was. and we have also gotten the quadrajet rebuilt, i always run 91 or 93 octane fuel. we also have had the assumption of a burnt valve or carbon stuck on the valve so it doesnt seal but my grandpa recently said that he thinks the cam is soft and then i recently also heard that small block gms are noted for soft cam lobes in this era...so i was wondering if you guys have ever had experiences similar? i was thinking of doing a top end kit and ditching all the emissions junk, because it doesnt burn a drop of oil and the seals are still doing good as well after 35 years of never bein opened up! thanks in advance!