Big Block Edelbrock limitations.

AndyF said
Typical guy bolting parts on an engine in his garage will end up with around 400 hp from a rebuilt 440 with Edelbrock heads. That might not sound like a lot but it is enough to push your car harder than it was designed to go. Early B body cars are dangerous with that level of power unless you've updated the suspension and brakes.

Thank you for a clear, concise answer. 600 hp sounded a bit much to me. Considering my cars performance, I feel I'm at the limits of the engine combo. I know it needs a better converter. Yes, the brakes, front and rear, suspension have all been upgraded.