273 or 225?

junkyardhero said
this asks the question: can you get 21% more from the /6 in an easy and economical manner and maintain reliability? and, are you okay with "only" 21% more, or do you see yourself wanting more than that?

by design, that 21% might be the ceiling in terms of economics vs that being the floor of the 273
(yes, i fully understand that you can build a super gnarly fire-breathing slant but that costs a whole bunch of money)

To me it mainly comes down to the heads, non ported I doubt you could make 200 hp with the /6, where the 273 heads could easily make 300+ hp which would take a fairly wild build to get that out of a /6, I doubt a /6 could make more than 350 hp Max effort NA on gas with every last hp rung out of it.