Trying to understand Manifold choices

guys, are some year intakes better than other years?
for example is a earlier year better than a later model stock 340 intake?
Yes, but it's splittin hairs, IMO. I think the best is the 1971 TQ intake. 72 has the egr "bumps" and 73 has the EGR jets. Of course the 68-70 intakes are great, too.