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Original Message
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| RE: 2X4 Vacuum Secondary Adjustment |
| By walt - 05/30/2006 11:41:01 PM; IP 68.248.74.14 |
| gerry is right,but a check of secondaries on any holley 4v,and caution advised,and ond duals with vacuum secondaries,plug off the balance tubes,rev the motor,then choke the air horn with your hand,keep the throttle open,the secondaries should start opening quickly,tests the diafram,vacuum,andwill not give you the spring rate,dirty quick check trick though,and it works,stay clear of the fan,had one explode and come back at me |
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