Disappointing #'s?

Thats pretty good. In 1970 Mr. Four Speed, Ronnie Sox managed to get a 13.00 flat in a six pack stock B body car, I dont remember which one. Youre running a full second faster which is the equivelant of 100 hp gain. 12.00 flat is nothing to sneeze at. If this was your first time then you should be able to improve anywhere from .2 to .5 seconds by either dynoing you car or test and tune at the track. My friend was able to tune his 401 AMC Javelin up by thirty horsepower by going to a reputable dyno shop. It cost him a couple hundred but where are you going to buy 30 horsepower in an engine that is already highly built for 200 bucks. Congrats!!