1976 D100, A833OD, 318 w/ headers & Edelbrock performer 2176 intake. Cam is unknown, likely stock. If not, something near stock. Currently has the Carter TQ 9250S that was on it when I acquired the pickup a couple of years ago. And it is shot. Wiggle the primary throttle shaft and get a whistle. Although I'm a fan of the TQ's I've decided staying with one is too much hassle for this application. Going back to a 500 CFM 2 barrel might be best but that would require buying an intake and a carb. At new prices that's approaching EFI throttle body injection like fitech, Holley, etc. So for this reason I am hoping to find a small 4-barrel (600-650 cfm) that fits the intake, is dependable, and pretty much a bolt on and go.
Looking at Eldelbrock Performers 1406, AVS2, Demon 1900 or 1901. Others? Thanks in advance for all tips and recommendations.
IMO, a spreadbore carb (Thermoquad, Quadrajet, Holley 4175) would be the best option for your truck.
Years ago, I had a 1985 Dodge D150 with the 318 2bbl. I removed the stock 2bbl intake & carb and installed a used Edelbrock Performer 2176 intake and rebuilt Rochester Quadrajet from a late 1980s Dodge Truck 360 V8.
It was the best mod I ever did to my truck. More power. Fuel economy and drivability improved. The truck would start instantly - hot, warm, cold - almost like EFI.
I personally prefer the Quadrajet over the Thermoquad for reliability and performance. The Q-Jet was installed on 1985 to 1988 Dodge Trucks & B-Vans with the 360 V8 from the factory.
A rebuilt Thermoquad would be the easiest option for you (if you can find a good one). Scott Smith at Harms Auto rebuilds TQs.
https://www.harmsauto.com/The Holley 4175 spreadbore is a nice carb but is very expensive.
https://www.holley.com/products/fue...ors/emissions_replacement/parts/0-80555CAn Edelbrock Performer, Edelbrock AVS2, Holley 4160 or Holley Street Demon carb in the 500-600 cfm range would be a good choice as well (and they are easier to find).
Note: You will need a squarebore to spreadbore adapter to mount these carbs on your Edelbrock Performer 2176 intake.
https://www.edelbrock.com/carb-adap...drajet-thermo-quad-spread-bore-2696.htmlhttps://www.holley.com/products/fue...cers/adapters_and_spacers/parts/300-6QFTIf you want to buy new - check out the 570 cfm Holley Street Avenger or 625 cfm Street Demon. I don't have experience with either carb but these are the two I would look at.
Hope this helps. Good luck.
