As a 10 second A-Body owner that has probably 10K in my 600 HP 408 (Buying parts AT COST) I think a MPFI gen III with 600 HP within spitting distance of that isn't too shabby.
My "mule" car is a 75 B body however...so i get the whole..."how do you get a $7500 car out of a 75 Roadrunner....you put a 10K engine in it" lol