Hey Al
It was both that Greg had mill flat.
I bought all new plenum, and housings, sent out for siamese runners got back a wrapped
used mess from Kirchhofer. I sat on it for a few years then had Greg Van Deventer port it and mill it all flat. So I bought new parts, got used parts back that would not seal, then Had the right Guy fix it.... This is why I say " go to the right guy first ".
