I did a boost test on my 87 TII because of idle problems and other signs of vacuum leaks.It failed it did not hold one bit.Any way I'm taking off the intake manifold to get to more vacuum lines and I think the leak might be the gasket and I can not find a metal gasket for my year any wear.Does anyone know where I can find them?.Also will I need any other gaskets or I read something about o-rings? These smilies are the ****.

 

Use the stock Mazda paper gasket. Unless the flanges are warped or not cleaned properly upon installation, the paper gasket holds up fine.

If you want to modify the manifold to use o-rings, then you will need to bring it to a local machine shop to have the grooves milled.

 

I was going to use metal for future boost increase.I have injectors and afc.

 

it's not like a headgasket on a piston engine. the paper ones are fine.

 

Ok thanks.I just thought maybe they would have something aftermarket.