[Zman1969]

Id be looking at what wiring us under dash if neutral safey switch is there and connected or if looks like pedals have been swapped? the four speed speedo cable came out just under wiper motor to bottom left of motor- about 8 oclock autos were no where near this. I have a pic of 4 speed cable on my 69 Nova on my cell if you want I can text it to you- PM me your number. usually few people do it factory so underdash will tell alot
hope this helps