I went to the strip yesterday... I have a 1970 w-30.. 455 ci... 4-11 gears..4 speed..I<EM itxtvisited="1"> can break into the 12''''s, but I can''''t break 100 mph... the car seems to quit pulling a couple of hundred feet from the end.. no misses.. still running ... just lays over... am I running out of gear ???? I am running 15 inch wheels and tall tires on the rear... I''''m stumped.[/i]<! Message ''''"" >