Re: Chasing Rough idle...compression?

Posted by Owen_Dyneto On 2011/5/21 9:01:51

Based on the compression figures and given your pursuit for a dead-smooth idle, a valve grind might well be on your horizon. Not that you couldn't enjoy a lot of miles of driving with them as they are.

As to running out of breath at 70, Ross's comment is a likely candidate. Distributors seem to suffer from complete neglect when it comes to lubrication. If you need bushings or advice, let us know. And I really doubt the rear axle ratio has anything to do with the matter. Even with a 4.69 rear the old prewar tanks managed to hit the mid-to-high 80s or better (true mph).