[OrrieG]

The one I have the bottom butterflys are mechanical, uppers are vacuum. I think the bottom control the air flow, top open the secondary fuel jets. The bottom shaft will not rotate until the choke plate is fully open so you cannot go to WOT when the engine is cold.

Anyway, went back out a figured out I was attacking the problem backwards. I was starting with the closed position and trying to get full open before the pedal inside bottomed out. Reversed the process, started with WOT and pedal on the floor, then worked length and angle of bend in the rod to get it to work. I did have to lengthen the lever arm on the firewall side of the pedal mechanism too.