[LOWRIDER]

Here's a couple pics of my mechanical secondary. The piece is about 2 1/2 in long and an inch wide. The large hole in the front hooks on the plastic stud on the end of the primary throttle shaft. The slotted hole is where the rod from the secondary vacuum lever goes. You can see a small screw/nut at the end of the slot. That's what opens the secondaries when the throttle reaches that point. That's how I set mine up. You can also see a small hole at the top of the piece. Your supposed to put a small pin (like a distributor gear pin) in that hole to open the secondaries. I found it works better the way it's set up now. I had bought one back in the 60's to go on my 56 Ford. Couple years ago I made this one from my fading memory.