thanks...
i'm going to bring both manifolds to the local napa to get dip-tanked.
the first thing the guy said was to take it easy on the aluminum intake ...so he seems to know his business...
i'll also ask them to check for parallel and have them face off the two units (if necessary) for a nice seal once things go back in.

do they have a special process/jig to keep the two units as a system? i could imagine even a few thou difference in intake/exhaust would result in different clamping forces.

thanks!

__________________
'81 300SD ---> '46 IHC Metro (some day)