Like the title says, I'm looking for some options to upgrade my carb on my 79 cj7. It has a 304.
Any info would be greatly appreciated.
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There are a few throttle body options, like the Holley Projection I believe. You can also go with a Weber. Also you can check out a propane conversion... http://www.gotpropane.com/p4.html#JEEP
Steve
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I dont' think a Weber is really an upgrade from an MC2100 which is what the 304 should have.
Are you looking for another carb or EFI? The MC2100 is a simple carb to rebuild so stick with it if you can. A rebuild kit will only cost about $40 or so. If it's broke or missing, you can find them for $10 or so at a flea market. Junk yards with older Ford vehicles will have them as well. They were used extensively in their day. If you wanted fuel injection, you'd be better off buying a kit, although I remember a guy who took one from a 305 and hooked it up. I'm not sure what hurtles he had to leap through though.
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I have an Edelbroc Performer 600 cfm on my 304 and really like it.
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weber is not the answer the factory carb can be modified very easily and inexpensive i kinda like the edelbrock idea also but i would want a performanc cam with it
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before i upgraded to pro-jection, I had a edelbrock performer and holley quad......both performed horribly on high angles. A good friend that wheeled with me, had your carb and always had fewer fuel issues on steep angles. I tried to mod the edelbrock to make it perform better, but is just didn't like high angles.
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I remember a post on JU where people rated fuel systems relative to working at high angles. I believe it went something like:
Fuel Injection
Quadrajet
Motorcraft
Weber...I think came next....Then I can't remember the rest. I had a Motorcraft at the time and was happy that it was rated highly.
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Where would be the best place to get the rebuild kit for the stock carb.
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my 2100 will run nearly upside down. havent had any angle problems with it.poormans fuel injection.
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I have a Q-jet sitting in my garage, it came off my 85 Z28 w/305... don't know what it would need to fit an amc eng, but it's yours for $20.
My Camero ran better with it than it ever did with the edelbrock I used to replace it. It has been sitting in the edelbrock box for about 8 years, so it more then likely needs a rebuild (autozone has kits I believe) -
good point on the angle issue with the holly you need to modify the floats which would be an issue initself but most jeeps on the road never leav the road so decide what youll use the vehicle for then decide but as far as cost effective the stock carb was well rounded and if you rejet it and modify the accel pump spring they work even better
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Here's a link to a motorcraft carb for sale in Pottstown. It's a 1.21 which will be jetted heavier than a 1.08.
http://www.jeepsunlimited.com/forums/showthread.php?t=884924
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