347 stroker dyno

1989 ford mustang 347 stroker dyno run at performance autosports in richmond virginia made 360rwhp and 380rwtq plan on getting a better more aggresive cam from anderson motorsports or a custom grind a trick flow R series intake 90mm throttlebody anderson power pipe a 80mm MAF some 42lb injectors and some long tube headers i hope to be around 420rwhp or more.... Dyno guy said would have made 400 or a little more at the wheels if it was a 5 speed