Do you think a leak could have developed because I was running lean ? this is the second set I have had to replace since the motor got rebuilt about two years ago.
There is Best Gaskets and Olsons Gaskets. I know Olsons is a thick non metal material. They have the gasket with the exh port blocked off also, but it needs a backer as it will burn through.
Intake installation is on page 9-17 in the 1964 Cadillac Shop Manual.
I think it was running lean because my spark plugs were white & it was idling low with the AC on, as we have learned. I think I have an intake manifold leak because I can hear it under load
hat is the WAG method ?