In the 70's and even 80's, an 11 second car on the street was extremely rare. If you had a 12 second car you pretty much ruled the roost, and even a 13 second car was nothing to sneeze at during that time frame.
There was one 11 second nova later on in the mid 90's that another friend of mine had. It was a 69 L78 auto. It had a real set of GM aluminum heads on it and a known history back to new but never could show definitively it was that way. Was a low mile car that sat for decades. Friend of mine had a front engine dragster he competed in local NHRA events so he had tons of experience racing and tuning. He freshened the L78, still stock internally, stock cam, intake/carb, no porting on anything, just a solid rebuild. Did have headers and 4.56 gears installed. Can't remember if he put any kind of converter in it. With a small slick on it and the headers opened, it made 3 passes. 11.92, 11.94, and 11.98. Remember that like yesterday but can't remember the mph. That was flying for a street car at that time. He never took the car back, street drove it for a couple years to local cruises, then sold it.
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