Hello, hoping to get some advice on a potential Sniper setup for my truck. It's a 1981 Dodge D150 with the 318 engine, 2BBL carb. The current carb on there is a Holley 2280. However, the …

Feb 21, 2019 · Holley rates their carburetors for cfm versus manifold depression, 1.5 inches for 4 barrels, 3 inches for 2 barrels. So a 390 4 barrel needs to reach 1.5 inches of manifold vacuum …

Nov 17, 2009 · The list number for most performance and factory 2 and 4 barrel carburetors will be found stamped into the upper right hand corner of the airhorn or sometimes called the …

Mar 16, 2010 · Hello, I have recent freshened up my Holley 4160 600cfm carb. It's on top of a 5.0L with a Ford B303 cam, GT40 heads w/ 1.6:1 roller rockers. Worked when it was on the …

Jul 13, 2021 · To start viewing messages, select the forum that you want to visit from the selection below. Please be aware that this is a community forum. Although Holley employees will take …

Jan 25, 2021 · To start viewing messages, select the forum that you want to visit from the selection below. Please be aware that this is a community forum. Although Holley employees …

Sep 7, 2015 · Actually, ported vacuum comes from _above_ the throttle plates, and is channeled through the front metering block on Holley Ultras. Chevy's often use full manifold vacuum for …

Sep 15, 2015 · Hi 69cam, I don't have adjustable air bleeds (just checked). It's a list 80457-2, 4160 carburetor. I have built a very mild engine, using an XE262H cam, KB167 pistons, and a …

May 8, 2022 · To start viewing messages, select the forum that you want to visit from the selection below. Please be aware that this is a community forum. Although Holley employees …

Below is pic of Holley pump cams, and how they deliver fuel based on throttle positions. Remember if you change you pump cam to readjust your accel pump linkage, you don't want …