you can run a ta49 with the 38lb injectors that you have and get away with the stock stall, but i would think about some 42.5 or 50lb injectors with the 60 and maybe a 2800 stall.
For what I am doing wich is keeping my car a street drivin car I am getting one of PT&E's new ball bearing turbo's wich is supposed to be an equivalent of a ta-49. I was told to run 42.5 injectors with a 2800-3000 stall. they said this should add another 100hp and is good into the 11's. With the alky kit and a little bit more suspension work I'm hoping for mid or high 12's.