Originally Posted by Dave63
I'd suspect an intake leak at rear cylinder intake seal. If you were to compensate for the leak, the front would run slightly richer.
As well, I'd be curious as to the compression difference between the front and back, prior to taking it apart.
Why ARE you taking it apart?
The base gaskets were leaking and the paint was flaking pretty bad so while I had the rocker boxes off I thought I would have a look at the pistons and cylinders and replace the base gaskets. I am also installing new pushrods, tappets and an EV27 cam.
I stripped the paint off cylinders today and I will strip heads later this weekend. I am going to leave the heads with the raw aluminum sand finish and redo the black on the jugs.
If you will recall from a previous post, I had a noise I thought was tappets.