RE: West .50V1 bench run
I don't have a Weston, but if someone with one gets some timing numbers, I'll get some numbers from my Webra .50 GT. Unless they have Webra do special runs of liners and possibly cranks just for them, these engines could be nothing more than "tweaked", with possibly the combustion chamber opened up, liner raised, crank port closing timing increased, bottom end fits checked, bearings upgraded, etc.
IIRC, I did check mine once and saw nothing really astounding...just a good quality engine.