who makes the best... they all look the same but some say full billit and others dont so i didnt know if there is a difference really i havent called any where just checked them out on the web... any opinions?
Stay away from the Holley regulator. There are far better choices out there for the same price or slightly higher. Mine leaked fuel through the adjustment screw into the vaccum system when I first installed it. Adjustment is possible but not very easy or accurate.