I wouldnt run a B Series, id run an H22 or a K24 way more cost effective.
As the WHP goes up , the longevity of the motor goes down drastically. Its pretty common for K24 medium street motors to make 290-300whp. H22s can make 250-260 pretty easily
B series if you are making over 260-270 its pretty much an all out race motor.
I cant really name the parts because they are usually all CUSTOM one off parts. theres only about 5 people in the WORLD who ever made over 300WHP NA with a B Series and most of them are race teams.
Skunk2
Eriks Racing
Those are the only 2 i can remember off the top of my head. Almost everyone runs K series now, B series is dead if you want to be competitive NA.