625 street demon

I just noticed that there is a composite bowl available, my opinion is that fuel boil will be an issue with the all alum version. I have always like the original afbs and avs carbs as well as the thermoquad, having worked on them for many, many yrs. The later carters and subsequent edelcraps I did not like so much, some would work good some just not and neve as good as the originals.

The street deamon appears to be a new manufacture Thermoquad.

to FS JUNKIE

FSJunkie wrote: Sonic Silver wrote: Get an Autolite 4300. It converted me to an aftermarket carburetor guy. Have one already. Much like any seventies carburetor, they work great as long as they are in good shape and you don't try to modify them.

I bought my 70 AMX new. The car always had a lean surge, the choke and fast idle never worked properly. I sent the carburetor to one of the best carb shops in the country in the 1980's. I can't remember, but I think it was The Carb Shop for a rebuild. I put it back on the car, no change. I took it off, used something else.

Later, about 8-10 years ago I read about how great Pony Carbs was with Autolites, so I box it up, and send it off to them, and choose the show plating. When they receive the carb, they call and tell me it is one of the best, totally complete 4300's that they have seen. They work their magic on it, and send it back to me with a bill for about $500 I think.

   I put it back on the car. Long story short, it looks beautiful in its new home, which is the box they shipped it back in. I currently have a Summit 600 cfm carb, which starts better, runs better, and is very easy to modify with Holley parts, if one chooses that route.

Back in the early 80s when I dragged my car home from the wrecking yard and dumped in a 401 727 from a matador it had the original 4300 and it ran perfect. Like modern fi, no hesitations at all, started perfect but it did have fuel boiling issues(lots to do with fuel we had back then at high altitude) but having worked on many, many of these I say they are finicky and hard to get "perfect". This is really evident after someone else has performed their magic  on them.