CARB SUGGETION?
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CARB SUGGETION?
1978 BRONCO NO LIFT 32" TIRES, 3.55 GEARS, OLD GOOD RUNNING 351M AND C6 TRANS.. NO CAM YET GOING TO A LOW TO MID ANGE GRUNT CAM. JUST A DRIVER TO WORK AND WEATHER IS BAD. LOOKING FOR BEST FUEL ECONOMY AND PERFORMANCE OVERALL. ANYTHING HAS TO BE BETTER THATN THE MOTORCRAFT 2BBL. (TIRED)... ALSO HAVE A STREEMASTER ALUMN. INTAKE WITH A 4 HOLE TORQUE SPACER I'M GOING TO USE... ANY SUGGESTIONS OF A CARB? NOT GOING TO REV EVER PAST 4500 I GUESS... DOES DRIVE HWY WITH IN TOWN TOO. 475FM TRUCK AVENDER 4BBBL ?? ELDEBROCK 500 CFM 4BBL? 600 CFM 4BBL?.... OR A HOLLEY 600? THIS WILL BE THE SET UP FOR WHILE UNTIL I CAN AFFORD PUTTING A DIESEL IN IT....
ANY THOUGHTS?
ANY THOUGHTS?
Posting Guru
Joined: Feb 2007
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From: Wingo, Ky
For what its worth the 79 Bronco I had with a completely stock high milage 400 ran better with the rebuilt 2 barrel I had on it before I switched to the 4 barrel edelbrock intake and holley carb.
I plan on keeping the 2 barrel on the 78 Bronco I have now and rebuild the engine fairly stock except for of course the junk stock cam and timing set and use better TMEYER pistons. The stock 2 barrel should still be fine since it will still be a low rev engine.
I plan on keeping the 2 barrel on the 78 Bronco I have now and rebuild the engine fairly stock except for of course the junk stock cam and timing set and use better TMEYER pistons. The stock 2 barrel should still be fine since it will still be a low rev engine.
Elder User
Joined: May 2004
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From: Shreveport, LA
For what you described, a stock replacement sounds like it would be best.
Barring that, I'm a big fan of the Edelbrock 1406.
The 1406 is a reliable unit that is very easy to tune. It'll run OK out of the box, just like any after market "Mild," carb will, but still not as well as a stock replacement that was designed for that vehicle. Getting a non stock carb that will work well with your vehicle will require some tuning with an air/fuel ratio gauge.
If you think there's any chance you can live with what you have and you already have plans to swap the engine, it wouldnt be a horrible idea to run what you brung and put the carb money towards whatever diesel engine it is you want.
Barring that, I'm a big fan of the Edelbrock 1406.
The 1406 is a reliable unit that is very easy to tune. It'll run OK out of the box, just like any after market "Mild," carb will, but still not as well as a stock replacement that was designed for that vehicle. Getting a non stock carb that will work well with your vehicle will require some tuning with an air/fuel ratio gauge.
If you think there's any chance you can live with what you have and you already have plans to swap the engine, it wouldnt be a horrible idea to run what you brung and put the carb money towards whatever diesel engine it is you want.
Posting Guru
Joined: Feb 2007
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From: Wingo, Ky
I'm only one opinion but I hated the Holley I had on my previous Bronco. Started like hell in the hot humid summer. Nothing I did would keep it from boiling the fuel when I turned it off while hot. Was embarrasing to take it anywhere you would have to set and grind on the starter forever for it to start. I tried longer fuel lines to route it away from engine heat. Insulated the line, many different sizes of carb spacers, different fuel level settings. Fuel still would boil in the hot humid heat.
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Joined: Jan 2013
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I have not had much experience with dent carbs but on my grain trucks that I've had throughout the years I've always hated the holleys on them and I would eventually pitch them in the weeds. But dad had a Edelbrock1406 on his 460 79 250 and loved it until the day in left.
Posting Guru
Joined: Feb 2009
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I've got a Holley 2 barrel on my 351m and an Edelbrock 1406 on my 460. I wish both of them had the original carbs back on them. Both run okay, but neither get the mileage I got with the Motorcraft carbs. I can get the Holley tuned to start well in either cold or hot weather, but not both. The Edelbrock is easy to tune, but I have vapor-lock issues with it from time to time and it has a small vacuum leak at part throttle on it somewhere that I have never been able to find. I've even tried rebuilding with all new gaskets twice.
Ford spent millions designing and tuning all the parts to work together. I'm sure they would have put something else on there had it worked better.
Ford spent millions designing and tuning all the parts to work together. I'm sure they would have put something else on there had it worked better.
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