Before sending that level of $ perhaps fab up a “proof of concept” with thin wall aluminum electrical conduit you can bend yourself, and try it out for a few thousand miles, not expecting it to last beyond a MPG testing period?
I doubt even having the correct pulse arrive back at the exhaust valve seat at low rpms will improve BSFC more than a few percent.
I would spend the $ on some wind tunnel testing time, or cheap coasting down steady grade hills.
I don't expect it to be a huge thing by it self but combining many tricks the whole thing should be pretty cool. My main thing i if I can improve the low end TQ of the engine it can operate at a lower RPM reducing friction and giving more time for the pressure to work on the crank before being released.
I already have a great hill I do red-neck wind tunnel testing on, I figured out I can block 1/2 the grill and a few other things on the front end and pick up a few MPH at the bottom. I think I may have gotten that idea from you years ago.
I am not causing global warming, I am just trying to hold off a impending Ice Age!
