Collaborative early a experiment

I didn't mean to muddy the water. I HAVE a set of 273 manifolds I intent to use on my car, its just a driver. I don't need high flow manifolds on the stock 318 for my use. I was just offering to drop in the engine using Treblig's manifold. NO I don't need to buy the manifolds, and not looking for free stuff. and I don't have it in my budget to pay shipping to see if these work.
be best for someone else to supply their car for this test that needs a pair of working maniforlds. sorry guys.