hello all 1st time here I have a 78 z28 that i'm putting a 4spd in. i found the pedals in npd my question is is my bracket set up for the dual pedals or will I need a new or different bracket to hold the new pedals. thanks for the help

 

Best bet would be to get the complete kit, since you'll need both pedals, Z bar, and all the linkage anyway. Plenty of new kits, or used assemblies on Ebay, with BIN prices around $225, and free shipping. Here's a really complete kit for $230
Camaro 73 81 Clutch Linkage 19pc Kit w Pedal Assembly in Stock Bellcrank | eBay

 

Clutch pedal mounts on the outside of your existing pedal support bracket, not in between the rails.
You should be able to see an extra tab sticking out to the left where you will attach the clutch pedal arm rubber bumper.

 

I used the kit for my conversion and it was the better path ... especially since I am using the Z-Bar