I am licensed to preach...Thanks guys, well except jrichker, you always derail carb threads with your preachy efi sermons. We all know your feelings about it already.
Anyway, I'll add a catted h and see how it goes... Gotta sell off my off road first tho...
Love my carb!
old converters needed it. new style usually don't need an air pump.Ford was pumping air into the exhaust for many years before EFI. If you do not want the cats to clog, you will probably want a smog pump too.
7991LXnSHO said:A preacher and a mechanic? I guess the new testament guys all had day jobs.
toolow91 said:old converters needed it. new style usually don't need an air pump.
That's very good "non preachy" help on my question. Makes a lot of sense. So what if the car is driven less than 2000 miles a year? Newer cats wouldn't clog up too fastNewer catalytic converters do not use the Thermactor Air System (smog pump) because they are designed to work with an improved computer system that runs leaner and cleaner
They add an extra set of O2 sensors after the catalytic converters to monitor the oxygen and HC levels. Using this additional information, the improved computer system adjusts the air/fuel mixture for cleaner combustion and reduced emissions. If the computer cannot compensate for the added load of emissions due to wear and poor tune, the catalytic converters will eventually fail and clog. The periodic checks (smog inspections) are supposed to help owners keep track of problems and get them repaired. Use them on an 86-95 Mustang and you will slowly kill them with the pollutants that they are not designed to deal with.
Fuel pump is an in line holley mounted under the spare tire well, just in front of the diff. Its regulated to 7psi. As for the tune, the car isn't running rich, it drives incredibly well, starts up great, idles great. To be honest, the smell isn't that bad, its just that I get a look and a "you stink" from my wife when I drive the car. As stated though, it was actually worse smelling when I had efi. Gt40 irons, no cats , mass air, whole 9. plus it idled like crap with efi and drove like a$$ in cold weatherA preacher and a mechanic? I guess the new testament guys all had day jobs.
My carb cars always start up quicker than the stock EFI ones, no matter what the weather. And the Carb cars are always cheaper to fix if they need a tune up or have some driveability issue. (I can do it myself.) Of course that is good - they need much more frequent tune ups compared to the EFI ones. Try finding a young mechanic who knows what to do with a set of points now. Even EEC-IV is a mystery for some younger mechanics! If I listen to enough sermons, maybe I will get to the point where EFI is just as easy too.
If you are having to go to all this work to avoid the stink, 1. the carb must not really be tuned that well or 2. there is a leak outside of the carb. That leak could be anywhere from the fuel cap, vent line, fuel lines, or the carb. What did you do about the fuel pump and do you have a pressure regulator?