I'm considering having the original Zeniths rebuilt ($700 at Royze) and reinstalled, removing the Webers. Has anyone ever run both in their car? Pros? Cons? Any other sources for rebuilding the Zeniths? Thanks!
Why not rebuild them yourself? There is a DIY somewhere on this website. I used it, never rebuilt one before and it was fine. Just gotta be super organized and take photos as you go. WRT synchronization, you may want to get outside help.
I thought about it but I'm juggling so many other projects + work the last thing I need is another! And I plan to tackle my window motors over the Winter...Why not rebuild them yourself? There is a DIY somewhere on this website. I used it, never rebuilt one before and it was fine. Just gotta be super organized and take photos as you go. WRT synchronization, you may want to get outside help.
Hi Bill,Len: Webers on your car? Impossible! Not original. (I guess I forgot, haven't seen your car in a while.) I've had both on my car. I had stumbling issues with the Zeniths even after re-building them. Also, the separate air and fuel adjustments on the Zeniths (came with the 74) were a pain to get properly adjusted. The Webers (32/36) were much easier to fiddle with, but that feature was offset by the clumsy linkage set-up and the potential for it to go past center, thereby getting stuck wide open. The Weber linkage was much "harder" than the Zenith linkage in terms of feel. Performance-wise I didn't notice much difference. The Zeniths have a zillion screws holding together three layers of components making up the carb body; the Webers are much less complicated to take apart and I think much less prone to vacuum leaks (no vacuum choke release, vacuum secondary, etc.) The Zeniths in our '74s have electric hookups and relays for the cold start valves and shut-off solenoids: is that stuff still in your car? As for me, I couldn't resist converting to FI with the stuff Steve and I cannibalized from our '75 CSI....so no more carbs.