[mrgem]

Good question and lotsa good responses. I think that 4100s were very good carbs (and still are...). However, you can't buy a new one and a properly-reconditioned one is quite expensive. They're popular because when set up properly (ask Midlife about when they're not), they provide very good service and appear factory-original. Edelbrock/Carters are also an early-60s design and perform pretty well. They're also usually about right, right out of the box. Holleys can make a car run good, but you've heard about their liabilites.

Glenn Morgan 66 GT Fastback 351w+toploader

 

[mrgem]

I could be wrong (happens occasionally*G*), but I think the last 4100s were produced by Motorcraft (successor to Autolite) back in the 70s. Most of the carbs out there have been rebuilt several times. That doesn't mean they can't be "re-rebuilt", but the bores for the throttles shafts are usually pretty worn by now and they leak vacumn. Any bore can be bushed, though. I'm thinking Pony Carbs (the recognized leader in Ford carbs) gets about $350 for one - somebody who's checked recently can tell you for sure. I paid $200 for my Edelbrock.

Glenn Morgan 66 GT Fastback 351w+toploader

 

[mrgem]

Hey Jim - meant to tell you - your little guys are really cute. I'll bet there are not many dull momemts at the Vogle house!

That other photo with you in the left seat - isn't that a bogey at 12 O'clock?

Glenn Morgan 66 GT Fastback 351w+toploader