Hood Clearance

What a great answer!!! I knew about the silly putty trick but I hadn't thought about using some on the set up I have then using that info to determine if the RPM would fit. I wanted to know if it would fit before I install with the 390 so that I can actually close my hood. If the Airgap is an inch taller I should have no problem determining if it will work. You also made me think about the fact that I'm also going to switch to Holley 750 instead of the current Edelbrock 600 so I guess I also need to check for any difference in carb height??

Thanks,
Treblig