stealth heads on a 383?

Thanks, guys.. that's what I needed to know. So, then I guess I'll be going with the 915's. I'll have to find other ways to reduce the weight I guess. I just figured with a flattop at zero deck I'd end up with 9.7 or so which would be fine for a street 383 with the cam I chose. Nice quench, too. But if port velocity would suffer that much then there's really no point.