The point we were making at the beginning was that he was seriously under estimating what his engine would be capable of.
I've never run any boost, never needed it to accomplish my goals. I was at a dyno contest when the chassis dyno owner/operator pulled me over and asked if I was interested in putting on a turbo or ProCharger. He said, "Jim, if you let me throw some boost to your engine (a 451 with 906 iron heads that was making 554 RWHP), I can get you 1500 RWHP.
He had previously put boost on cars making less rear wheel horsepower than we were at the time and they were making 1100-1400 rear wheel horsepower.
The gentleman we did the Stealth heads for, is now aware that he has cylinder heads that are now capable of blowing the crankshaft right out of the bottom of his block, if he throws boost at it.