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I'm running stock intake and manifolds. I'm thinking of just installing a valley gasket that has the exhaust crossover holes blocked. That sounds like the easiest way to do it for me.



Beware!

Unless the gasket has stainless steel or something similar in the heat crossover area, it'll burn through.

I learned this the hard way a long time ago. Installed one of those gaskets with the crossover blocked and all was good - for a while. Then I noticed the car hated the heat again, couldn't figure out why, etc.

That was a long time ago, and they might have improved the gaskets since then. I'm just sayin', you should probably look closely at it before you install it.

I bought some .030" stainless steel shim stock, and it works well for this, meaning exhaust gas can't hurt it.

Jim