high boost at low RPM could be a problem with a centrifugal without large drive pulley . I run a fairly stock 250 with a centrifugal Vortech V2 blowing thru a 2Bbl Holley. Recently had to swap to a smaller driven pulley on the SC to enable enough boost at lower RPM, now get @ 10 psi at 4500 rpm. Most SC's are secondary geared to be driven by
comparatively high spinning V8's.
With a Buick Riviera derived draw-through Garrett T3/Quadrajet on a previous- 250 , increased boost incrementally to @ 20 PSI with plenty of available power at lower RPM when spooled up - until an oily mist across windshield when pistons ring lands broke off ...
the forced induction projects are like steam engines and fuelie' dragsters -, maximum power is reached just before catastrophic failure ...
hope to see pics of the project
have fun
Vortech V2 specs are @ 680 HP at 20PSI boost at 50,000RPM Impeller speed.
With serpentine 6.125” (5.0 V8) Crank Pulley and 2.5” Supercharger pulley, the two pulley sizes and internal SC step-up gearing yields an IMPELLER rotation speed calculated at @ 22,000 RPM at cruise speed with engine RPM @ 2500RPM.
At typical 250 SIX upper shift point of @ 5,000 RPM the Supercharger impeller speed approaches 45,000 RPM !. Calculating to an Impeller speed @ 750 Revolutions per SECOND.