I think I like the XE cams from comp better...at least on paper. The XE256 has a bit more lift than the 255deh but is still similar duration.

A huge factor is your compression ratio. You would be cutting it way close using the 255deh and 9.5 cr and could end up having to burn 92octane. I crunched the numbers on Tim's build that was similar and the cam he used was way more aggressive than the 256 and even 265 which means the dynamic compression was lower than if he used the 265 cam- he was happy that it burned 87 octane.

My cam is special grind roller that is similar to the XE 256-262 and I will be using the kb pistons Tim had made for the aussie 2v heads that I have. My dynamic compression is higher than tim's build so we will see as far as 87 pump. I guess you are getting his special zero deck hypereutectic badgers? He will have the info you need.
For some unknown reason folks in the business do not talk about dynamic compresion which is the big cheese when it comes to cam selection.
weird.