Holley Single Stage 105 Power Valve - Standard Flow 20-OTL-NG 12 AN Male to 10

12 AN Male to 10 AN Male O-Ring Swivel

565 in Spring OD

1979-1986 GMC K3500

C15-R2 Valve

GM Fullsize Van 1996-21

Holley Single Stage 105 Power Valve - Standard Flow 20-OTL-NG 12 AN Male to 10Single Stage Power Valves Standard Flow #HLY125 10 Opening Vacuum 1. 0" Hg #HLY125 25 Opening Vacuum 2. 5" Hg #HLY125 35 Opening Vacuum 3. 5" Hg #HLY125 45 Opening Vacuum 4. 5" Hg #HLY125 50 Opening Vacuum 5. 0" Hg #HLY125 65 Opening Vacuum 6. 5" Hg #HLY125 75 Opening Vacuum 7. 5" Hg #HLY125 85 Opening Vacuum 8. 5" Hg #HLY125 95 Opening Vacuum 9. 5" Hg #HLY125 105 Opening Vacuum 10. 5" Hg Holley has been the undisputed leader in fuel systems for over