Upgrade intake manifold?

Dave Haertel said
No, what I was saying is I'm too big to lay on the floor and change the steering column out, I'd have to take out the seat to fit. The mechanic that did the steering column did the ID and said it was a 340, I never followed up, but when I looked at the front stamping it said 360, thus the 2 different identifications. I'm under the hood today to put the manifold back on so I'll get a definite ID before hand obviously. I'll upload the pictures of the stampings.

Even if you end up figuring out what engine you have by the stampings i would like to give you alitle piece of advice wich i think would be great for anyone that has trouble getting down under things.
Ignore the language and price in the link that probably dont mean anything to you,but check out this little gadget and see if you can find something similar next time you are in a partsstore,it should be pretty darn universal.I have one of these little mirrors with ledlightning and its awesome trying to see things that is out of reach and eyesight and dont cost an arm and a leg,probably about $10.

Inspektionsspegel LED

As for the original questions,thats a good manifold thats not worth chaning in my opinion,could be worth matchporting it alitle if you wnat to do something about it but thats about all and certainly not a must.