[tjcarr123]

I have a 1967 Chevelle SS 138 car. I'm in the middle of restoring it. It has a 396 with a edlebrock 750 performer carb and a TH-400 transmission. The vehicle does not have the bracket behind the carb for the kick down switch. I've read that the switch will not work with out the old carb on it. My question is has anyone used the Edlebrock nitrous switch as a kick down switch?

 

[Verle]

Any switch should do the job, not a heavy electrical load.

 

[Andy's Auto Repair]

I have a 1967 Chevelle SS 138 car. I'm in the middle of restoring it. It has a 396 with a edlebrock 750 performer carb and a TH-400 transmission. The vehicle does not have the bracket behind the carb for the kick down switch. I've read that the switch will not work with out the old carb on it. My question is has anyone used the Edlebrock nitrous switch as a kick down switch?

You could, but the nitrous switched are rated very low amperage as they are used on the grounding side of the system. And you learn something every day. Never knew 67s pt he switch on the carb. Used to 68-up where the switch is on a bracket above the go pedal.

 

[Tom Mobley]

here's what you really need.

http://www.summitracing.com/parts/bmm-20297?seid=srese1&gclid=CPrw3IH6trgCFSqCQgod0iwAJQ

you can mount this in a standard TH350 kickdown cable bracket. There's one listed on the same page if you don't already have one.

 

[tjcarr123]

Everyone is telling me that my kick down switch should be under the dash but mine has a rod that goes through the firewall not a cable. So that means that mine should have a switch mounted to the manifold that when the carb arm comes back it hits the switch. I call Edlebrock they said the nitrious switch will work, but i just want to do it right. I looked at the B&M but it doesnt show a bracket with it.

 

[6T7shovel]

The kick down was bolted to the carb mounting bolts drivers rear. you can find them on Flea Bay, I picked one up with bracket just a few months ago for 35.00. from a 67 impala, same bracket and switch, hope this helps.

 

[davis95]

here's what you really need.

http://www.summitracing.com/parts/bmm-20297?seid=srese1&gclid=CPrw3IH6trgCFSqCQgod0iwAJQ

you can mount this in a standard TH350 kickdown cable bracket. There's one listed on the same page if you don't already have one.

This is the one i have. Easy setup and easy to adjust.:thumbsup:

 

[OLDED]

The originals were designed to fit specific carb bases. Most you find will be for a QJet - not for a modern Holley type base. In other words, they will most likely not be a simple bolt on and will need redesigning to make contact for the down shift where you want it to occur. On the 65, I use a micro switch for a nitrous set up, made a simple bracket and adjusted it so the TH400 downshift occurs at about 2/3 throttle. 67 was the last year for the "under the hood" design in most GMs.

 

[Tom Mobley]

bracket is on the same p[age as the switch but here it is anyway

http://www.summitracing.com/parts/hly-20-45

$12, cheaper than going to a yard, finding one, cleaning it up, etc.