292 Chevy Langdon headers/Offy Intake woes

[Bodi]

I'm putting a set of Langdon's cast headers, and an Offy aluminum 4bbl intake on my 64 Chevrolet C10 with a 292.

The flanges on them interfere with each other when trying to mount them on the head. There is no way to get both the intake, and exhaust in place. They simply get in each others way. It appears that both Langdon's headers, and Offy's intake have flanges a little larger than the stock exhaust, and intake. This may be fine when used with the stock equipment, but, it just isn't jiving when used together. Considering the coin I've got in to all of this, I'm not super impressed.

So, anyone else run in to this problem? I'm really not interested in getting out the die grinder on a bunch of brand new parts. Emails have been sent to both Langdon, and Summit. I wouldn't expect to hear anything on a Sunday, so, that's why I'm here.