I'll make this short-where do I get some? Specifically an improved intake and exhaust manifolds would help. Also, is there an easy way to change the exhaust donuts in the standard manifolds? Mine are either disintegrated or at the very least leaking something fierce. I can't even work under the hood without almost passing out!

 

Look at the sticky post at the top of this forum.

 

holy crap - the best info I've found so far.