Do you foresee any problems with the slightly longer, taller runners on the rear cylinders like that? What's the deal with the center ridge in the floor of the intake port in the cylinder head?
i think that ridge is for pushrod tube clearance. Pushrods go through the intake on FE engines.
The ridge in the intake port is for flow. They call it a floor wing or a vane. It sits in the low velocity part of the port and helps the mixture make the turn into the valve. At least that is the theory. I suppose Trick Flow did a bunch of flow bench development with and without the wing but they didn't post any of that information on their website so I'm just guessing that they found that it helps. I don't think I've seen a wing like that in any Mopar ports but I've seen it before in some Chevy engines.
I noticed a bid difference in flow swirl pattern on the piston with a tilted port floor on my iron heads from the Edl flat port I have .
