Quote Originally Posted by lionelhutz View Post
Ya, tapered pipe fittings are not the correct fittings to thread into a throttle body. The adapters used are straight thread.

I don't know what you call it besides GM steel EFI fittings, but any parts store should have repair lines with the correct ends on them. Any place I've been in has different sizes and different lengths of these lines. Here's what the end of these lines looks like. Just get the right size.

Attachment 8460

FYI, you can use a GM TBI steel body canister filter and these fittings will fit it too.
Missed your reply. I'm pretty sure those are called Saginaw fittings. It must be that there is a tapered insert that these go into. Actually, now that I think of it, I bet I have tapered adapters going straight to AN6 right now. I may need to find the ones that go to Saginaw...