Accelerator cable: no WOT

monte · Jan 30, 2020

Hi, any help would be greatly appreciated. 1970 Coronet R/T with 440. I do not have enough throw in my cable to fully open carb. Edelbrock RPM manifold with Holley carb. There is nothing restricting gas pedal in interior. Probably need another 1/2"+ of throw.

TN Mopar · Jan 30, 2020

You dont have the correct bracket
The correct bracket would be set at the rear to give you more room

https://www.autopartsdb.net/assets/images/ProductImg/M/MN2541.JPG

Demonic · Jan 30, 2020

^ Agreed. Looks like some sort of modified 2bbl bracket. The 4bbl ones are reproduced.

monte · Jan 30, 2020

Thank you for quick reply. I tried a new bracket that you left link to. Did not come close to mounting with my manifold. If I was to disconnect cable from bracket, I am not able to pull/extend the wire part any more than pictured, Thanks again.

Demonic · Jan 30, 2020

You might have to grind a little off for the Edelbrock manifold. The ports are a bit taller. Either way, the clamp and cable housing, moved rearward, will give you more travel.

Mancini might have what you meed...

https://www.manciniracing.com/arthbr.html

Fran Blacker · Jan 30, 2020

Isn't there piece available that mounts on carb to make carb open faster. Meaning less travel.

Demonic · Jan 30, 2020

That would be the radius of the attachment point to the throttle shaft. Yes, the well known Holley adapter..#20-7

https://www.summitracing.com/parts/...c7vet_oZUSMO1nnYYMS-T8dMhoL6omKoaAphJEALw_wcB

But the cable anchor point may still be too far forward. I'd do both myself.

TN Mopar · Jan 30, 2020

Mancini will have what you need
Look at their tall brackets

dryheat · Jan 30, 2020

Check Mancini for cables & other hardware you might need ...

monte · Jan 30, 2020

Thank you, will try Holley part and Mancini.

monte · Jan 30, 2020

Thank you, will try Holley part and Mancini.

PRND21 · Jan 30, 2020

Yes, you need the lever extension that Demonic refers to. It changes the relationship of the cable to the throttle shaft. Not sure if you need to change the cable bracket, maybe.

Darter6 · Jan 30, 2020

I used the Mancini MREAR 1055 . Worked for me.

TN Mopar · Jan 30, 2020

He needs both the Holley extension and a different bracket
The extension moves the cable outward and aligns it straight with the cable holder. It will not fix his problem with the cable being to short. He needs the bracket for that

Ron H · Jan 30, 2020

Ok, just a thought that likely could be off the mark; can you fully open the secondaries with cable disconnected? Reason I mention is on my manifold the 2nd plates were contacting the mani ports and a spacer took care of that...but my mani was stock I was contending with.

Ernie ingling · Jan 30, 2020

Good suggestion Ron H also that spring is mighty stout

383man · Jan 31, 2020

On my 63 with the Lokar cable I use I also was not all the way at WOT. I had to bend the acell pedal arm up some that's in the car for more pedal travel and that fixed it just fine. Good luck with yours , Ron

dvw · Jan 31, 2020

The bracket and cable only matter if you pull over center. This would be the carb pivot going below the centerline of the carb pivot to cable attachment bracket at wide open throttle. The pedal cable attachment travel is X. If the carb attachment travel is greater than X, the carb wont open fully. The pivot on a Holley carb is further from the throttle shaft than the stock carb. Therefore the travel is greater than X. The pivot needs to be moved closer to the throttle shaft. Either a new hole in the carb or adapter bracket. To rectify the cable pull going over center. Modify the stock throttle bracket. Cut it in half. Weld an extension moving it up and forward.
Doug

monte · Feb 1, 2020

Thank you for your responses. Will not be able to get to my car until Monday. Still waiting for Holley part to arrive. Will try your suggestions.

Thanks again.

andyf · Feb 1, 2020

monte said:
Hi, any help would be greatly appreciated. 1970 Coronet R/T with 440. I do not have enough throw in my cable to fully open carb. Edelbrock RPM manifold with Holley carb. There is nothing restricting gas pedal in interior. Probably need another 1/2"+ of throw. View attachment 902184

That is exactly why I started making taller than stock throttle brackets. http://arengineering.com/

Accelerator cable: no WOT

Active Member

Well-Known Member

Well-Known Member

Active Member

Well-Known Member

FBBO Gold Member

Well-Known Member

Well-Known Member

FBBO Gold Member

Active Member

Active Member

FBBO Gold Member

Well-Known Member

Well-Known Member

FBBO Gold Member

Well-Known Member

Well-Known Member

FBBO Gold Member

Active Member

Well-Known Member

Similar threads