If I go to this from stock, do these numbers look correct? The car is a 2015 XKR.

Mina lower pulley,181.00 mm (reported?)
New custom griptek upper pulley👉🏻 decrease to 3.20 in = 81.28 mm (stock is 3.3” or 83mm?)

=Supercharger speed change vs stock,+22.800%
Estimated boost,≈11.05 psi (≈+2.05 psi)
Theoretical peak power,≈626.28 hp
Realistic expected power (VAP ecu tune) ~586–637 hp

Plus I’ve added new 3” fresh air intake w hi flow k&n
TB ported and polished
X pipe w center resonator delete up to 2.5” from 2 1/4 stock
S/C top intake polished
S/C ported and polished
upgraded charge cooler and pump

thoughts? Advice? Are the pulley sizes accurate? @everyone