HVH - High Velocity Heads 4150 Carb to 4500 Intake Flange Adapter 1.5" 71000915 The Holley VR Series billet

The Holley VR Series billet fuel pressure regulators are part of the VR1 and VR2 Series brushless fuel systems product line

300 in taller

fit 8-bolt rotors with 7" bolt circle mount

Just what you'd expect from the world's most experienced (and most winning) exhaust brand

HVH - High Velocity Heads 4150 Carb to 4500 Intake Flange Adapter 1.5" 71000915 The Holley VR Series billetProduct Description: Carburetor Adapter 1. 5 in Thick 4 Hole Square Bore to Spread Bore Aluminum Polished Sold Individually High Velocity Heads has been porting high performance cylinder heads and intake manifolds since 1970. HVH has over thirty years of head porting, head design, intake porting and intake design along with carburetor spacer design experience. HVH Super Sucker carburetor spacers are the most effective carburetor spacers ever developed.