Originally Posted by Shockwave
Is it stuttering?
Could be a bent pushrod.
Also could be a problem with your ignition. Im ass-u-me-ing that your running an MSD box to an stock type distributor?
And your sure the plug is firing?
I don't know if I would call it stuttering. IT seems that the #1 cyl fires during a certain RPM lets say, 2500. AT idle and <2500 it doesn't.
I am running a MSD 6-AL with a Pro Billet distributor. I am sure the plug is firing, I can see the blue glow from the head.