I'm looking for a dual plane for a mile 340 W2-econo head motor.

I'm looking at these 2 MP intake manifolds. I can't quite figure out the difference between the 2. Anyone with MP and W2 knowledge know the difference?

Mine are old oval port econo's from 78.

http://www.jegs.com/i/Mopar-Performance/312/P5155426/10002/-1

http://www.jegs.com/i/Mopar-Performance/312/P5249572AB/10002/-1

Last edited by cdp; 12/17/17 04:25 AM.