That looks to be a 71/2, with a built small block, I bet it was a mid to low 10 second car. I just got my hands on a deal of my lifetime, a good friend from my local track who is almost like my grandpa is selling his 71 panel with a fiberglass 76/7 front clip to me as a roller for $5,000. With the 427 that he had in it it was a low 9 second car. It's probably worth $10,000 as a roller so I'm totally stealing this thing, when I cough up the last bit of money to buy it I'll stuff the motor and tranny from my current vega in the new one and put a stock small block in the old one. With the motor and tranny from my vega in the new one it should be a mid 10 second car as well as be consistent. I'll bracket race it on Friday nights in the high school class for the next 3 years.