Essentially, you are making a mistake, by inferring that “essentially pulley only” is the same as “pulley only”. Id also venture out and say that this car is closer to pulley only than FBO. I think we will agree to disagree. No need to revisit our replies for the millionth time. Lol.
"essentially " pulley only, means to normal people, a pulley and the minimum requirements to run that pulley. aka the pulley, the belt, and the tune to match.
other than what the guy has, what other "bolt ons" are left to do? and thats a legit question. does a 2.5 pulley really max out the injectors necessitating larger ? does it really max out the pumps requiring a BAP? or is it because he wanted o runa fuel that can make better power and run a hotter tune but all requires so much more fuel?