Sorry to resurrect my thread, but it made sense to keep it together. Since the last post, I've had the engine running well and floating around 5# boost. It's been great except I've had some oil burning issues. I had some worn guides and I couldn't seem to keep the o-rings intact after install.

I just pulled it apart and dropped the head at the shop. They did the works on it and it's now good for positive seals and I went with 1.8/1.6 valves as well.

I was walking out of the machine shop and the owner told me to install the positive seals on all the guides, but to be safe, put o-rings with NO shedder's on them all as well. This seems counter-productive, as won't the positive seals be more than adequate? Anyone go this route or use both seals before?

Thanks!


67' Camaro - Performance 250 build - www.TurboCamaro.ca