[gtofreek]

I built a 407 about 5 years ago with the KRE D-ports. I ported them to flow about 300/220. It runs a solid roller cam 237° @ .050", I & E. It has RA manifolds and complete 2 1/2" exhaust system with mufflers. Made 506 HP[about 540-550 HP on other dyno's] at 6400 rpm without friction added, and with entire exhaust system bolted up. With 4.11 gears, and TH400, this thing is a beast.

Here is a link to some video's: If you do a search on YouTube under my gtofreek name, you will find a video from when we originally dynoed it.

http://forums.maxperformanceinc.com/...d.php?t=738541