Rebuilt Holley 600 cfm carb...How would this do good off road

[84CUCV]

Its a Rebuilt Holley 600 cfm carb w/ electric choke. I can get it for 175. i need one for my 83. So will this be desent? thanks for the help

 

[Hogback Fabrication]

It all depends what kind of "offroad" you mean but...


If your truck sees any kind of steep angles you will not be happy.

IMO, the best carb you can run is a Q-jet. Second place might be a Holley truck avenger or a Motorcraft 2 barrel (I can't think of the number right now ).

 

[84CUCV]

OK what do Q-jets go for and where can i get one? might try the pick and pull. What did they come on? thanks

 

[Hogback Fabrication]

Q-jets came on basically every V8 GM made from the late 60's until the mid 80's, and they actually kept putting them on a few cars until 90 or 91. The older ones are better, basically find one from a 70's car or truck and you should be set. If you can find one with an electric choke that isn't computer controlled and doesn't have APT (adjustable part throttle) you will be set. Otherwise you are stuck using a hot air or manual choke. There are lots of threads about Q-jets on here, a search would probably turn up lots of information.

Edelbrock used to make new Q-jets, you might still be able to find one of those.

 

[rcamacho]

I've had good results on off camber and hills by just adding whistle type vent baffles and spring loaded needles to my Holley 3310-1. The 600's have side hung fuel bowls so your results may vary.

 

[84CUCV]

one last question, can a Q-jet be tuned or handle a motor with heads intake and headers. I not sure if this matters or not just want to check. thanks

 

[Hogback Fabrication]

one last question, can a Q-jet be tuned or handle a motor with heads intake and headers. I not sure if this matters or not just want to check. thanks

Definitely.

 

[84CUCV]

COOL thanks for the help