gregnash
Anal Retentive Analyst
There is folklore occasionally promulgated on this forum (sadly) that to get the manifolds to seal, even when the ears are different thicknesses, it's only a matter of torking down the bolts hard enough.
The bolt breaks off in the head or sometimes pulls the threads outta the head before the manifold magically gets sealed, because physics.
What?!... Nonsense! That whole science and logic thing has been debunked!