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Throttle Cable Adjustment


73pony
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OK. Recently switched to an Air Gap intake and Quick Fuel carb. The dimensions must be slightly different than the Holley Dominator intake and ProForm carb I was running as now I cannot get to WOT. This is the factory throttle cable with the integrated spring on originally a 2bbl carb. Is there any adjustment to this? I really don't want to go the route of an adjustable bracket as they just don't look that great.

73 Grande H Code. Headman long tube headers, T-5 Transmission, 3.70 Traclok, Lowered 1" all around, Aussie 2v heads w/ 2.19 intake, 1.71 exhaust, screw in studs, full roller cam 608/612 lift 280/281 duration LSA 112, Quick Fuel 750 CFM double pumper, AirGap intake.

 

- Jason

 

 

082-hot-rod-power-tour-2017-1970-1970s.jpg

 

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Does the spring compress all the way? Could the problem be the pedal, like new carpet keeping the pedal from full travel?

 

 

“If you can't explain it simply, you don't understand it well enough.”

--Albert Einstein

 

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Spring compresses all the way. I have to partly compress it just to attach to the carb thus reducing the amount of travel remaining to the point it reaches full compression before WOT is achieved.

73 Grande H Code. Headman long tube headers, T-5 Transmission, 3.70 Traclok, Lowered 1" all around, Aussie 2v heads w/ 2.19 intake, 1.71 exhaust, screw in studs, full roller cam 608/612 lift 280/281 duration LSA 112, Quick Fuel 750 CFM double pumper, AirGap intake.

 

- Jason

 

 

082-hot-rod-power-tour-2017-1970-1970s.jpg

 

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How about building an extension bracket that fits between between the bracket and manifold? That would look better than a universal adjustable one-size fits all.

 

 

“If you can't explain it simply, you don't understand it well enough.”

--Albert Einstein

 

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That is my plan. Was just wondering if the cable was adjustable or if anyone else has run into this problem.

73 Grande H Code. Headman long tube headers, T-5 Transmission, 3.70 Traclok, Lowered 1" all around, Aussie 2v heads w/ 2.19 intake, 1.71 exhaust, screw in studs, full roller cam 608/612 lift 280/281 duration LSA 112, Quick Fuel 750 CFM double pumper, AirGap intake.

 

- Jason

 

 

082-hot-rod-power-tour-2017-1970-1970s.jpg

 

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Got any pics of the bracket you fabbed up?

73 Grande H Code. Headman long tube headers, T-5 Transmission, 3.70 Traclok, Lowered 1" all around, Aussie 2v heads w/ 2.19 intake, 1.71 exhaust, screw in studs, full roller cam 608/612 lift 280/281 duration LSA 112, Quick Fuel 750 CFM double pumper, AirGap intake.

 

- Jason

 

 

082-hot-rod-power-tour-2017-1970-1970s.jpg

 

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Just an idea... but you can probably get 1/16” + by loosening up the carburetor fasteners and making sure the carb is all the way forward. Do the same with the bracket making sure you have it all the way back. The bracket is just steel and you might be able to give it a little “English” to get it where it needs to be.

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Another way I was able to get WOT apart from modifying the pedal pivot point was to attach the throttle cable ball at a point closer to the throttle shaft which will lessen the total cable travel

Mine being a Holley has 3 different holes for attachment so not sure for the Quickfuel?

P1030238.jpg
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I had the same issue. I cobbed up a plate that repositioned the factory bracket which worked but didn't look great. I ended up going with this style aftermarket bracket.

 

https://www.summitracing.com/parts/qft-49-4ssqft/overview/

73 conv. 460, D0VE large valve heads, Performer RPM manifold, Voodoo 227/233 cam, Holley 950 HP carb, C6 trans, 3.25 trak-loc.

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I didn’t have that problem, but I had to raise the bracket up. I have a Blue Thunder intake manifold and its taller than stock, so I just had to put some spacers under the bracket. I also had to raise the kick down bracket. The return spring was hanging up, so bent it up to clear everything.

Hope you figure it out.

John - 72 Q Code

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Got same issue when I've installed my sniper and wanted also keep the strong original bracket.

I've made and added a front plate that copied the original bracket front shape and that was enough to get the full travel for my TPS.

As OzCoupe72 said, you could also relocate the ball toward center of the shaft if you do not miss lots of travel distance to reach WOT.

 

bracket1.jpg

73 modified Grande 351C. (Finally back on the road woohoo!) 

71 429CJ. ( In progress )

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Looks like I will be taking some detailed measurements this weekend and see what I can come up with.

73 Grande H Code. Headman long tube headers, T-5 Transmission, 3.70 Traclok, Lowered 1" all around, Aussie 2v heads w/ 2.19 intake, 1.71 exhaust, screw in studs, full roller cam 608/612 lift 280/281 duration LSA 112, Quick Fuel 750 CFM double pumper, AirGap intake.

 

- Jason

 

 

082-hot-rod-power-tour-2017-1970-1970s.jpg

 

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