With the Garrett housing and a 2800 stall it will spool as fast as the stock turbo/converter. Great choice and have seen it run 11.30's on a stock unopened long block including stock valve springs. You will need to turn the boost up to get power out of it and it it will need another chip if you plan on over 18psi. If you run alky injection this can show a lot of power over the stock turbo in the 25psi range.Hey bison im interested in the 49...is it suitable for a 2800 stall pretty stock set up so far but down pipe and exhaust on the way....do have a tt chip and power logger ...