Will, I think the most important thing to do & avoid “blowback” is to provide a splitter in the exhaust at the cylinder and exhaust stub to stop flames “tracking” from one cylinder into the other as there is a period when the pistons allow this as they allow the exhaust ports to be open at the same time.
I did this to my veteran and it utterly transformed it.Transfer gauzes might be able to be done away with.(I don’t know I never did this but the gauzes never required cleaning out ).
Good Luck “Potty”
