Nettet12. des. 2008 · The power valve is a fuel enrichment "light switch" that only determines WHEN to provide the enrichment, not how much (that's determined by the size of the Power Valve Channel Restriction in the metering block). If you go too high on the PV you'll end up enriching the mix even during light throttle situations where it's not needed. Nettet23. jan. 2014 · This carb is a double pumper and has a primary and sec power valve. The original jets were 76/76 and PV's of 6.5/6.5. I will be jetting down to approx 72/72 for the altitude. My question to the carb experts- is there an advantage to running a sec power valve. Most holleys DP up the sec jetting approx 6-8 sizes or do run a sec power valve.
Holley Power Valves O
NettetPower Valve Check Ball Kit. Power Valve Check Ball Kit. Part # 125-500 Be the first to write a review. Estimated Ship Date: 04/14/2024. Find Similar In-Stock Items. ... Holley Performance Products has been the … NettetShop for Holley 6.5 Hg. Standard Single-Stage Power Valve with confidence at AutoZone.com. Parts are just part of what we do. Get yours online today and pick up in … get tables in excel power automate
What Size Powervalve? Hot Rod Forum
Nettet3. mar. 2024 · In your picture the 6.5 and 7.5 on the right and back have an extra ridge or step compared to the others. This is a later model Holley PV design and not compatible with the 94, this will leak and flood your carb. You need a flat surface like the 8.5s and the 7.5 on the left. Can be tricky to acquire, but they are sold. Nettet23. mai 2012 · If the vehicle has a manual transmission, take. the vacuum reading with the engine thoroughly warmed up and. at idle. If the vehicle is equipped with an automatic transmission, take the vacuum reading with the engine thoroughly. warmed up and idling in gear. In either case, the power valve. selected should have a vacuum opening point … NettetHolley replacement power valves are an important component in the power enrichment circuit of Holley's performance carburetors. They operate by using engine vacuum to … christof eckardt