[BossHogg69]

I would either track tune it or chassis dyno it. engine dyno's are good for getting a baseline, but it will respond very differently when you drop it into the car with the weight of the car, your torque converter, etc, acting on the motor. There are a lot of variables you won't see if you just run it in on an engine dyno. Of course, if all you care about is telling people you have a 500hp BB, you can stick it on an engine dyno and try to get that number - there's nothing wrong with that if that's what you want. But sooner or later someone is going to ask you what it runs in the quarter! It really just boils down to what you want, a quick street car or being able to say you have xxx hp.

Plus track tuning is WAY more fun and probably cheaper unless you break something!!

btw, is this motor going in the truck in your avatar? what's the rest of your setup?