Holley has been the undisputed leader in fuel systems for over 100 years. Holley carburetors powered every Monster Energy Nascar Cup team and nearly every NHRA Pro–Stock champion for four decades. Now, Holley EFI products power these cars and are dominating the performance world. Holley products for GM’s popular LS engine are dominating the LS scene as well. Holley’s products also include performance fuel pumps, intake manifolds & engine dress–up products for street performance, race and marine applications. As a single solution, or partnered with products from other Holley companies we can give you the edge you need over the competition!
- Single-Stage Power Valve High Flow
- Includes Gasket
- Opening Vacuum 6. 5 in. Hg
- Durable and long lasting
- Fit type: Vehicle Specific






luis morales –
all good product came in perfect condition and at the right time and the excellent quality and a fair price
oneggww –
good product and seller
kewlwhlz –
Fits perfect and opens at the correct vacuum.
jrodie –
worked great
slick –
Big help
Andrew –
Genuine Holley product. And works well for my SBC that only draws 12″ of vacuum.
uncle-buck –
Installed this in a 1995 Holley 4160 marine carb used on a PCM Ford 351W ski boat engine. Tuned the idle circuit to a maximum intake manifold vacuum of 14 Hg. 14 divided by 2 equals 7. Since Holley doesn’t offer a 7.0 power valve, I ordered the next size down and it works great.
White Sox Fan –
I needed to replace the power valve in my Holley 1850 carburetor and for peace of mind bought a 6.5 size manufactured by that company, rather than take a chance with a slightly less expensive off brand product.The power valve took less than an hour to install and is working as desired.