Crazy idea for 318

Yes, they did. Currently (If there still being made and in stock, ya never know with MoPar these days)
They offer a closed chamber W2 at 55 cc IIRC of approx 1300 a pair, fully assembled.
Yes, this gives Edelbrock a run for there money once people realize this.
The one cave eat to the W2 heads are the cost of offset rockers, IF you can find them. Once in a while, there not available from various manufactures.

Also, as of late, I can not find a econo head. This means you have to get the rocker stands and set them up in there height, should the OOTB stands not be the proper height.

Ecno heads in a assembled form for about $600 or so each would be a mad, MAD seller.