Best performing non offset Small block Mopar heads

I have a set of Rods heads on my AMX. It has been 6.06 at 111 mph on pump gas. 5.98 on race gas and 5.85 on alcohol. My combination is in the 9 second tread towards the end. I'm very pleased with the heads I got from Rod. And he just sold about 10 sets of them in the last few months. I think he's waiting for some more castings to come in. My car weighs 2930 lbs with me in it.