13:73 in the quarter , it's in the post on "post your build"? Never drove it on the street but never overheated with a small aluminium radiator, that plate riveted on the back of the water pump, 160* termostat , bottle of water wetter, and the Ford Taurus 2 speed fan even in 110 * racing heat. With the original Pontiac built 151 4 speed ,16:86 ran Was like 20:?? Stock in the quarter , did the best in NY - 4th place for a season , did better there cause they had the regular tree lights, not the Led tree that AZ had. Put in the 425 cause the 151 could not compete in the class in Az and it didn't like the heat. Did the best there 17th place for the season.( Made the cut for the divisional finals in Las Vegas but didn't go) NY season : every Sunday April to October AZ season : 7 races total Feb -June Flat towed to all races except early in the early 90's when starting to go racing again. Last raced before in 77 with the 62 Belair and the 62 Impala wagon. Doug in P.R.