[Spurrinit]

Originally Posted by Justappumped24v

Did you replace the engine mount inserts? I have personally ran that cam on a p pumped 24v and it was very smooth minus the full cut delivery valves that caused some loping. I’ve seen loose dampeners cause vibrations as stated. Above 2500 rpm it’s hard to distinguish vibrations since 12vs are not the smoothest motor known to Man kind. I’d also do a once over on your injection lines make sure they didn’t get kinked or bent at some point. What did you set valve lash too? What clutch is in the truck? And what fly wheel? My south bend dual disc had a werid vibration to it that was different then the stocker it replaced

I put new oem motor mounts on along with the energy suspension outer pieces. Original mount inserts were torn.

It’s good to know that the cam should idle smooth. Thanks for the reply.

I’m going to look into a new dampener and see if that helps any.

I set valve lash to .01 intake .02 exhaust.

I used a new valair hd single disk with their flywheel.