Does anyone have any advice on motor mounts. I have a 1970 supreme with a 108 cam lobe seperation. I love the cam but the engine lobe so much it shakes the car. Anyone have any idea on how I can take this beast down?

 

Increase the idle RPM a bit.

 

Ill try that. Thanks

 

Manifold vac advance could help too.

 

How much should I push it? Set a 12 degrees now

 

12º is good, just be sure to use a manifold vacuum source so that you have that full 12º at idle.

 

The guy that did my Dyno tune told me not to run vacuum advance. I should ask him why. I know he had the distributer out and put it on the distributer machine.

 

I'll take a whack at this one -- because he doesn't know how to set up the distributor to run properly with the vacuum advance intact? I'll go with my answer, but if you do ask him, be sure to also ask why the factory put it there in the first place.

 

I'll call him and ask him that question. Thank yoo!

 

I wonder if it's because that cam dosent produce much vacuum at idle.