Thats great its running better. You also changed atleast 2 or more things with your carb. Harder to tell what really did make it run better. But to give you more tips on tuning the Holley. Harry is right, the PV needs to be relatively low in #, like 3.5-4. The 10.5 PV you have is open practically all the time. So you are getting fuel from 1. Main jets 2. PV and its channel restrictions.
What I am wanting you to do is. Jet the mains for normal driving (cruise). Have the PV open only when the vacuum is low (like 3.5-4) ,IE when you starting to get into the throttle and drill the PVCR to supply the fuel needed when under boost.
Lets see some video of this car under boost. Tom
Last edited by tlowe #1716; 01/14/1211:14 PM.
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