Plenum gasket glueing

[A26B]

Originally Posted by UKZR1

The plenum is ported for a 368 so the gasket needs to be trimmed quite a bit and I cant afford for it to move around at all.

Just an FYI here..... The plenum gaskets I make have 37.5mm port dia., so no need to cut gaskets to fit ported engines. They still retain a narrow port divider and can be used on stock port size as well. They are available in the 0.030" thickness, same as OEM, and ).042" thickness if preferred.

About the 1/4" phenolic spacers; I ran them on my car for awhile and doubt there is any appreciable gain. Makes the alum vac tube on the driver side fit poorly and also means you now need 2 sets of plenum gaskets. Worth the money? I don't think so.