Other way around -- put the 3-way converter in the aft location and hollow out the front converter (just off the exhaust manifold). This way less heat in the engine bay for (much) better driveability.
I don't think this would do anything useful, up at the front of the exhaust system. I do think it would increase exhaust turbulence and therefore increase restriction.

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一期一会
Too many people who were born on third base actually believe they've hit a triple.

It's been almost a year from my last post. Oh well. I had my catalytic converters replaced along with the muffler. The truck sounds cool, but still no power. Finally after the memory of that cost abated, I took my Dodge to Ca. Carb. They are supposed to know something of the lean burn system, which was suspect in my mind. After describing my no power problem to the apt owner he said it sounds like a fuel delivery issue. Slant Six Dan mentioned that earlier. I left my truck with him. Sometime later he called to say the truck is ready for pickup. When I arrived at his shop he related to me how he drove it on the freeway and experienced my complaint. He then showed me an old piece of ten inch rubber fuel line that was located on the passenger side of the gas tank that connects to the metal tubing running up to the fuel pump. The original rubber was sucking air through the many cracks in it along with gas. The old Dodge runs fine now. In my defense I did replace the fuel pump and fuel filter! So long to that new light Dodge truck diesel.

Now we know the rest of the story!
Good mechanic and an inexpensive fix!

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Aggressive Ted

http://cid-32f1e50ddb40a03c.photos.live ... %20Swinger


74 Swinger, 9.5 comp 254/.435 lift cam, 904, ram air, electric fans, 2.5" HP2 & FM70 ex, 1920 Holley#56jet, 2.76 8 3/4 Sure-Grip, 26" tires, 25+MPG