I will definatly find somthing to record the sound, I know it will be pretty bad *** with the lift I have and 106 speration.. I have my Double humps set-up, I ported them and I have been around guys who run 8's all my life and they taught me.. The heads should be pretty good they are 492 casting.. with angle plugs and 64's. I think they were "GM performance parts"
Yeah, I'm all set up with springs too, I had the seats cut to accept bigger springs and I'm running Elgin Swirl Polish stainless race valves. Here's the specs on my springs:
Spring Pressure Installed: 135# @ 1.750" - 115# @ 1.800"
Spring Pressure Open: 335# @ 1.250 -360# @ 1.200
Coil bind @ 1.170"
All around they will handle 600 lift easily.