off road carb recommendations UPDATE!!!

[muddysub]

yes i searched....


i never thought i'd own a carb'd vehicle but my new 78 bronco has an edelbrock something on it... its a POS, tiny little off cambers/hills and it dies right away... i looked around and a lot of people like Qjets and truck avengers... but since i know NOTHING about carbs i figured i'd better ask and figure things out for sure... i dont know if its vacuum operated secondaries or not, hell i dont even know what the hell vacuum operated secondaries are... im a diesel guy. this stuff confuses the **** out of me.... what kinds of carbs are out there? what kinds of secondaries? what makes a good offroad carb? someone help me please...

here are pics of whats on it...

oh and its got a vacuum leak. (so im told anyway) once again, im not used to vaacuum, only boost pressure. how the hell do i find a damn vacuum leak?

 

[rcamacho]

You might try adding the spring loaded needle&seat for the carb.
I use an old Holley 3310-1 with offroad needles and internal baffles - works fine for everything I'd attempt.

 

[mrk5]

I don't know much about Edelbrocks, but I'm sure that's a vacuum operated secondaries.

I like my Holley Truck Avenger. It took some tuning, but does well enough for a carb on the trail. For me it is an easy carb to tune.

Carbs typically have troubles due to fuel spill over from the float bowl vents. I also know that Holleys can get fuel gravity draining back though one of the circuits into the venturis.

I think that there is a Ford 2-barrel carb that is popular for wheelin.

 

[muddysub]

I think that there is a Ford 2-barrel carb that is popular for wheelin.

its a 4bbl even i know that. count em in the second pic...

 

[scooter122983]

he means that there is also a carb made by ford that is popular for wheeling. not that the carb you have is a 2 bbl.

 

[83ZZ502_Jimmy]

he means that there is also a carb made by ford that is popular for wheeling. not that the carb you have is a 2 bbl.

Agreed.

However, the edelbrock you have can be made to work just fine. I modified mine with the off-road needle and seat and a couple other tricks and its worked great.

There are a few threads dedicated to this on this carb.

John

 

[big dan]

I say q-jet all the way. Ive ran both a holley and edelbrock with spring loaded needle and seats and both my stock q-jets have out performed them in every way. when I rolled my truck it came to a rest on its side, still running with the q-jet but had very low oil pressure.

 

[mrk5]

he means that there is also a carb made by ford that is popular for wheeling. not that the carb you have is a 2 bbl.

Yep, that's what I meant.

Stormtrooper runs a worked over edelbrock with success. Evidented by this pic:

 

[vortec]

i'd like to give the truck avenger a whirl, but until i do, it's q-jet all the way. i've never managed to kill it from angle or bounce.

 

[Chevy305]

Well it all depends on the type of wheeling that you do. Then get a carb that'll handle the demands.

I'm a Holley man so I have to recomend a Holley truck avenger. Of coarse, don't think its a bolt on and go carb. There is quite a bit of tuning you have to do first to get it running correctly.

 

[badmix]

Ive got the Holley Street avenger carb. The only diff. between them and the truck is mainly the cross over tube on the top. When I first ran my Holley, it would die on any kinda steep grade and not so steep. I called HOlley and they sent me for free a cross over tube to put in and told me to lower the floats (this was simple as moving a couple screws). Now it does jus fine.

they do require some tuning. Ive gotten pretty good at using the vacuum gauge method, it seems to really work well, but you have to have a good motor to start with , with no vacuum or air leaks, etc.

 

[muddysub]

a guy at work has an efi system off an 80s mustang with a 302 in it that hes parting out. will this work on my motor?

 

[big dan]

to find your leak use something like ether or carb cleaner and spray it around areas where there could possibly be a vaccum leak, vaccum hoses, carb base, intake gasket stuff like that. with the motor running by the way. if there is a leak it will suck the fluid in and the motor will speed up everytime you spray it in the leak.