This guy dynoed at 301 and John (both of them) said it's about right. But looking at Mike's (la canada) dyno sheet, he hit 380rwhp... he was running close to 20psi but still, that's only 4 more psi and I can't fathom making 80+ more rwhp on 4 extra psi and no cats/ pre-cats + intercoolers. If i remember right, Seedy dynoed somewhere in the neighborhood of 350rwhp... difference being testpipes and downpipes, boost controller but set at 14psi... can someone please explain. I'm confuZed.