I was able to get a 14.6 @ 97mph with a 1.89 60foot my timing was at 19 TDC and the run went well. but I do have clogged cats that could have slowed me down. and it was nice and cold out. I have only ran that time once, and I really dont considder my NA a mid 14 second car. but it is possible to get some good times. I do think 14.6/14.7 is a more realistic time, but you never know?