Ive been looking and looking, and I cant find a safe, "unrigged" way to hook my throttle cable to my holley 4150. The car was orginally LO3 305 TBI. Pics are below to explain my problem a little better.

Basically, the throttle cable is too long and it goes too far past the linkage on the carb to hook up properly. I got a cheap a$$ specter bracket and spring for now. But even with the bracket all the way back, I cant get the cable far enough back to hook onto the carb with enough for adjustment. Im thinkin about cutting the eye hook off the end and finding a connetor like on the choke side. Basically something that I can bolt onto the carb linkage thats got an hole goin through it with a screw to lock the cable in.

Throttle cable with bracket all the way back, cable in WOT position

Throttle cable with bracket all the way back, cable in idle position

This is the connector Im lookin for

If I can find that kind of connecor in the 3rd pic, something that I can bolt onto the carb linkage, I should be ok. But I cant find one around here! And the one on the choke side is riveted on! Anyone got some suggestions, other than swapping cables? Id really dont wanna modify the bracket either, plus it just seems easier to modify the cable. Thanks in advance!

 

Any guesses?

 

Get a throttle cable for '82-'87 f-body carb'd (L69 or LG4, VIN G or H, respectively) application. Might be able to find it at a dealer, or on the Classifieds here.

Go to www.summitracing.com , click on on-line catalog, air & fuel delivery, carburetors, throttle lever studs. You'll find what you need to connect the carb'd throttle cable.

 

sounds good to me. I was hopin to rig up something, but I guess Id better just do it right the first time. Thansk five7

 

You don't need to do that. I use a cheap Spectre bracket as well and had the same problem. Remove the throttle cable part of the bracket, flip it 90* and attach it to the top of the bracket further back using the same bolts that retain the tranny cable bracket. Make sure that the tranny cable bracket is flipped so that the bolts are in front of the tranny calbe bracket's face. That will give you enough length for both.

This will mean, obviously, that the throttle cable bracket and the tranny cale bracket will both move forward and backward by the same amount- can't adjust them individually any more.

Adjust it so that the throttle cable is JUST able to open the throttle fully when you put the pedal all the way down. Then you'll have to pull the adjustment on the factory tranny cable out almost all the way to properly adjust it (you know- pushing the D-shaped button built into the head of the cable and pulling the cable adjustment slider out). The tranny cable should have about 1/16" of travel left in it when the throttle arm on the carb is wide open. And that last 1/2" of travel in the cable you'll have to pull on it pretty good to get it to extend, just FYI.

I attached the tranny cable stud to the same hole in the carb's throttle arm as you would use for an older style kickdown cable. It's not SUPPOSED to be the right place for a later 700R-4 overdrive tranny but I checked and rechecked the linkage geometry and it's damned near identical to a factory QJet carb used with these same trannys. In short- it works perfectly. I've had this setup on my 92 Camaro (converted from TBI) for over a year without any problems. Tranny shifts perfectly from very light throttle through WOT- just like when it had the stock TBI system on it.

 

Well I suppose you could just go do what you were hoping to do, but it's cheaper and easier and a helluvalot faster to just go get a new cable for a carb in one of these cars. Takes like 45 seconds to change a throttle cable if you're slow like me. Disappointing I know, when you get all excited looking forward to rigging something; but, it's even more disappointing on down the road, when you realize you haven't ever found yourself in the middle of the freeway somewhere with a car that suddenly won't do anything but idle.

Why does everybody on these boards always want so bad to "rig up something"? I like rigging stuff as much as anybody; but some things, it's harder to rig, than it is to do right.

Holley makes a bracket, the Spectre cheepie works OK, I think there are others (maybe Edlebrock or Moroso) as well. All of them will work fine with a stock carb throttle cable for some reason.

 

only reason I was hopin to rig up soemthing is because its cheaper. I didnt know if the older style throttle cables would be a direct fit, even with the pedals and all.

Plus, for now Im gonna be drivin this thing maybe 1 or 2 times a month, and thats just around the neighborhood. Im still buying all the gauges and fixing all the small leaks (tailshaft seal and pinion seal mainly )