Help from experts wanted.

So here is the deal.
I have a 73 duster with a 78 360 (wich i think is pretty stock) and a 727. It currently has a Torker 340 intake and a Holley 650 DP wich i suspect has too large jets.
I am thinking to buy a new intake manifold and i have my eye on the Edelbrock performer and the Edelbrock air-gap Rpm.
If anyone could help me decide wich one i should get (or nither?) It would be great
The carb i am wondering weather i should try and fix it up with some new jets or just get myself a brand new one (wich might put a small dent in the budget :þ )
Ive never really worked on american v8 before so bear with me here.
Any thought or ideas?
Thank you :D

Been there done that, Edelbrock RPM is the wise choice on hopped up engines.

However! Since your closer to a stock engine....

AJ was correct about posts #4 & #8.
A stock intake or a Performer will be the best.