the oe fpr and rail are just fine, if you run something like hondata or uberdata the 1:1 rising rate fpr is what is needed and the rail is good to like 400hp.

255lph hp walbro and depending on your boost 350cc-450cc injectors.

for gauges, boost, fuel pressure, oil pressure at a minimum. when getting it tuned an egt and wideband o2.

I run on my daily driver: oil temp, oil pressure, fuel pressure, egt, wideband o2, boost, (also a boost limiter, like some electronic boost controlers have, or the limiter feature that hondata has) I run both types of limiters of course I am paranoid about blowing my daily driver so I want to know whats up at all times.