G gretsch16pc New member Jun 24, 2009 #1 ...RPM Intake dyno475hp? What are the pros n cons on a serpentine belt system and, who makes a the most complete/best between MARCH PERFORMANCE or BILLET SPECIALTIES.
...RPM Intake dyno475hp? What are the pros n cons on a serpentine belt system and, who makes a the most complete/best between MARCH PERFORMANCE or BILLET SPECIALTIES.