I bought the AFM to Throttle Body Boot from the Z Store. Funny thing is that I had to buy the 77 boot instead of the 76. Not sure what happened but it appeared to come stock with the 77 version. Not really sure what is going on here.

Any thoughts?

Thanks.

Thats indeed strange. They changed the pvc design and the hose in May '77. Maybe it was changed by a PO and thats all he could find?

Chas

I'm glad you're finding/correcting problems. I have yet to see an old car besides one of my own that doesn't have multiple problems -- usually small stuff, like a cracked vacuum hose here and a bad electrical connection there. To be honest, even my own old cars have one or two problems at any given time. Life gets in the way, I suppose. My Z has a bad AAR, but I've just learned to live with it -- tired of fussing with it.

A fuel pressure regulator is a very simple and robust part. It's very unlikely to be inaccurate, because that would require the spring go kapoot. It can fail if the diaphragm gets ripped, but that's a rather rare occurrence as far as I can tell. I've not heard of any verified FPR failures, although I know lots of people change them out.