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  1. Cuprum-74

    Missing 3-4 gallons.

    Earlier I thought that was the case as well, So I checked it and it is working. (Trying to figure out the easy stuff first).
  2. Cuprum-74

    Missing 3-4 gallons.

    So after almost 10 years of driving the duster and tolerating the gauge going empty & putting in only 10-11 gallons. I figured it's time to find out what is really going on. So after a few experiments that usually resulted in running out of fuel & using the "1 gal trunk reserve tank" (spare gas...
  3. Cuprum-74

    Carb Guru Opinions Requested

    I'm currently using a Street Demon 750 tuned to 4500 ft above see level. So far I am extremely pleased with this carb. It's like a mashup between an AVS and a Thermoquad. I get almost 18 mpg highway, running 70 mph at 2900 RPM (8-13 around town depending if I drive Mad Max or not) And that's...
  4. Cuprum-74

    Those with Street Demon Carburetors....

    I have been running the Street Demon 750 in mine for almost a year now. I love this thing, its like an offspring between a Thermoquad and an AVS. I had to lean the primaries out quite a bit with rods + jets. (I live at 4500 feet above sea level). I drove to Louisville, CO and back (506 miles...
  5. Cuprum-74

    Carter M6270 Rebuild?

    Hey folks, My Duster just started to run lean all of a sudden. So I checked the fuel filter, Carb and even checked out the ignition. All clear. Well, there was a slight issue of the vacuum advance on the distributer going out but that has been rectified. So I took off the Carter M6270 Fuel...
  6. Cuprum-74

    Horrible MPG/Fuel odor troubleshoot

    My Duster once was getting 8 miles to the gallon (on the freeway). And the exhaust smelled terrible. Come to find out my Carter fuel pump (M6270) was putting out too much pressure (about 8 psi) and one of the brass floats in the 650 AVS developed a leak which filled up with fuel. Therefore...
  7. Cuprum-74

    Horrible MPG/Fuel odor troubleshoot

    X2... It's also possible that your ignition system is outta wack too. Check all your spark plugs and make sure they're all sparking.
  8. Cuprum-74

    Thermoquad rebuild.

    I hope you mean the rings that look like this right?
  9. Cuprum-74

    Thermoquad rebuild.

    Well the good news is I have plenty of spare parts. Lol
  10. Cuprum-74

    Thermoquad rebuild.

    Well I just collected a total of 5 thermoquads for a total of $240. 3 9000 series. Two of them are seized and one looked like it was dropped pretty hard. And two 6000 series. A 6322 and a 6545. The 6322 has a busted screw still stuck in the base. The 6545 is the cleanest and looks the most...
  11. Cuprum-74

    POLL: Which is your favorite carb(s) of choice?

    A little old but I still like it: http://www.moparts.org/Tech/Archive/bb/25.html That Carter 750 AFB did extremely well when stacked against the Holley style counterparts. I've rebuilt quite a few Carter AFB's. I like them. I'm about ready to switch out my 25+ yr old carter AFB 625 with an...
  12. Cuprum-74

    9002S Thermoquad carb

    Well I found this on Ebay: http://www.ebay.com/itm/CARTER-THERMO-QUAD-6-2146-CARBURETOR-CHRYSLER-OEM-MOPAR-/221592034251?pt=Motors_Car_Truck_Parts_Accessories&hash=item3397ea1bcb&vxp=mtr It is a 6488 S Any opinions?
  13. Cuprum-74

    9002S Thermoquad carb

    Are you still selling this? **EDIT** Oops, my bad... You paid $20 for it, lol... Never mind
  14. Cuprum-74

    9002S Thermoquad carb

    Yup, that is the one pictured, I already went ahead and bought it...#-o I'm attempting a rebuild on it (if so it needs). I'm going to try and learn more about these things. I learned to rebuild Carter AFB's and Edel performer's by myself. How hard can these Thermoquads be?
  15. Cuprum-74

    9002S Thermoquad carb

    Yes, It is a 1.5 inch primary. I went ahead and bought it.
  16. Cuprum-74

    9002S Thermoquad carb

    Calling all Thermoquad experts: I have a lead for a 9002S Thermoquad carb for only $25. It is a little rough but moves freely and still looks functional. I tried doing some research on this and all I've come up with is that it is for for a 75-76? 360 AT. I have a 360 with about 9.7:1...
  17. Cuprum-74

    1986 la 360

    There are good folks on here that can rebuild and tune Thermoquads. Some even sell rebuilt ones I believe. Harms and I believe RustyRatRod are the ones people refer alot. I'm sure there are others here. Ebay is another source. (make sure they are reputable) Speaking of which I'll be on the...
  18. Cuprum-74

    1986 la 360

    Mainly for the 360's I believe about 1985 was the last year for the smog-era Thermoquads. From 1986 to 1989-90 Dodge used the Rochester M4MC series Quadrajets (That's what my old 1988 Dodge Power ram had originally). I still have the old Quadrajet in my garage in pieces. I know nothing about...
  19. Cuprum-74

    who restores thermo's

    Interesting... That's a Utah area code phone number...
  20. Cuprum-74

    Best fuel to be using in my 360

    Enjoy! - I'm sure its not quite 100% accurate. But it should still help. http://pure-gas.org/extensions/map.html LOL @ California, Nevada & Alaska Hawaii surprised the heck outta me.
  21. Cuprum-74

    Best fuel to be using in my 360

    What is the average altitude of where you're at? At 10.6:1 with aluminum heads. 91 octane would be safe, heck I think you'll even be possibly safe with 89 octane. My 360 has about 9.7:1 with cast iron '308' heads with a moderate 291THR7 cam in it. (I know, not the best cam, but I'm using it...
  22. Cuprum-74

    Anyone ever done dyno check Holley vs. Edelbrock?

    I dunno but I've always liked the Carter AFB 625 more than the Eddy 600, now that Carter is pretty much part of Edelbrock now, I'm not sure about the performer. I have 3 Carter AFB's that I've accumulated over the years including one I bought in 1998 and I've rebuilt the other two. I did...
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