2 Quick SU swap questions...

[mimregi]

So after all my fretting about the DGVs, I found a deal on the SUs I just couldn't pass up. At the end of the day, I'm just too novice to be a carb pioneer and feel a lot more comfortable working on the SUs given the help available here, the ZTherapy vids, etc.

Anyway, I contacted the seller of this auction and got a great price from him. I'm new to this, but it looks to me like it has the two carbs, all the linkage, balance tube and intake maniold. I think I will need a fuel rail, air cleaner housing and a lot of love. I'm in no hurry to get them on, and the experience is academic as much as anything else, so I am really looking forward to taking my time and getting it down to the nuts and bolts, cleaning everything off.

My 2 questions: Any gotchas when looking for a fuel rail? I presume I should be looking for a '70-'72, but will other years be ok?

As for the air cleaner housing, I have noticed two styles -- one is a straight elips, one is a bit larger (not quite triangular, but sort of -- I can post some pics but I suspect most of the folks here will know what I mean) -- any functional difference? My understanding is that both will work, one was from the flat tops and the other the rounds, but either is ok.

Thanks as always!

-m

[Arne]

Looks fairly complete, to me. And being that they are supposed to be from a '72 and therefore are (probably) 3-screw carbs with water passages, you would not actually have to change out the entire manifold. The '72 carbs with their center linkage should bolt straight onto your existing '73 manifolds. In fact, some believe that the '73 manifolds flow better, and prefer them over the '72 E88 castings. I think the '72 balance tube will bolt up to the '73 manifolds if you prefer the less complex look of that. Or you can swap the whole enchilada.

Re: fuel rail - I believe that all '70-72 rails are the same, so any of them should work. But lots of people run round-tops on '73s using the original '73 fuel rail. Perhaps not quite as clean looking, but functional. So that's not a critical issue.

Re: air box - Get an oval one from a '70-72, not the later odd-shaped one from the flat-top cars. The flat-top air cleaner will require adapters from Z Therapy (or some custom work on your own) to fit the round-tops. The adapters aren't cheap, and if you're going to have to buy an airbox anyway, better to get one that fits correctly from the start.

[mimregi]

Thanks as always Arne! Was just about to bid on one of the oddball ones too... I'll just wait around to find an oval one at a decent price.

[Arne]

If you see a deal on a backplate only for an oval one, I've got a spare front housing for one I'd sell cheap.

[mimregi]

Outstanding, thanks for the offer =) I'll ping you if I find one.

-m