Holley 4160 Vacuum Secondary Check Ball

Holley s materials state that the check ball is only used in carbs in which the check ball sits on a hole which has a notch in the side so that it helps moderate the speed at which the secondaries actuate by limiting the amount and speed at which the vacuum signal can reach the diaphram.

Holley 4160 vacuum secondary check ball. On the autolite 4100 this is the discharge check ball. 111 primary metering body filler 112 vacuum tube plug 113 idle limiter cap 114 idle adjustment needle. This tunnel ram is set up with a pair of 0 1850 600 cfm holley vacuum secondary. Now holley efi products power these cars and are dominating the performance world.

Exploded view model 4150 4160. The bigger steel ball usually resides in the main discharge. Don t misplace it and note the location. Holley 4000 check ball for the secondary diaphragm.

Tuning holley vacuum secondaries. Always be sure to retain that small steel check ball that s located in a recess in the main diaphragm housing. Holley carburetors have powered every nascar cup team and nearly every nhra pro stock champion for four decades. 67 secondary diaphragm housing check 68 secondary diaphragm housing check ball.

Stainless steel check ball 3 16. Included is the proper drill bit size with stop to facilitate installation. 2 comments on tuning a vacuum secondary of a holley carb terry m november 8 2016 at 1 01 pm wished you covered they jetting of the secondaries too. Holley has been the undisputed leader in fuel systems for over 100 years.

Nomenclature model 4150 4160 ref. Detailed instructions are included.