How much did you spend to have them done here are mine when i had them done. I have oversized valves, bronze guides, high load beehive springs, titanium keepers, full port and polish. I also added ford GT supercar followers. I did a base line on my set up with the same boost an lowered my compression and these heads picked up 55rwhp.
Mzilla how was the overall torque/power curve effected?
I lost between 8-10 ft pounds of torque up till 4800 rpm but at 5000 rpm it took off like a bat out of hell. I also attribute some of the low end torque loss due to the edelbrock lower intake and 6061 elbow. Honestly I could not tell a difference in torque driving it though.