[Guest]

Does anyone know how much my car will lower with the Neg.wedge kit and 1 inch lowering springs?? And what do
you think about a Performer RPM intake and Edlebrock 600
carb on a 289?? Any replies will be greatly appreciated.

 

[Ponyboy]

The wedge kit lowers your car about 1.5" combined with the 1" drop springs give a 2.5" drop, pretty low. I have spoke with Boyd at Pro-Motor Sports (they make the kit) several times and they recommend using stock height springs with the wedge kit. They sell progressive rate sprerings to go with the wedge kit. I have the street rated units 350-480 lbs. with half a coil cut out and they are great.

If you are installing the manifold on a stock 289 I prefer the performer for better low end. 600 cfm carb is great for these motors.

 

[Art]

I have the neg. wedge kit and #620 springs, the front end is around two inches lower. Don't use the dropped springs with wedge kit!

The 600 vac. secondary carb is perfect for a stock or mildly modified 302 motor.

 

[bluefinger]

I'm about to do a front end rebuild with the Shelby lowered control arms. What are the advantages of the negative wedge kit?

 

[Guest]

I have the global west upper arms which go on more than 1'' lower. I also have the 600lb 1'' lowering springs.

I can't state this loud enough. IT IS PERFECT!!!!
I love it! The ride hight could not possibly be more perfect. Theres no rubbing on my front tires. It looks like they should rub(no gap), but they dont.

Deffintally recommend doing it.

 

[Billgear]

Wth the negative wedge kit you lower the upper arms 1.75 inches. The actual wedge keeps the balljoint
at a flatter angle, so it doesn't bind. My car was 24 inches at the front fender lip with 24.5 diameter tires,
neg wedge + 1" drop springs.

 

[bluefinger]

That makes sense. Is the primary purpose for the Shelby mod and the Negative Wedge Mod/kit to allow for additional camber adjustment?