I wouldn't expect to hear any different from someone who sell's them......
Dang, do you know who you are talking about?
Joe Sherman does not need to come here to harp AFR heads. He's simply stating what he has personally observed. He's been chasing horsepower for over 40 years, and doesn't need to spam this message board to get business!
The Motorsport GT40-X head isn't even in the same ballpark as the AFR.
Some people like to -hate- the AFR since they are so popular... but they got popular for a reason. They are GOOD!
I purchased my first set of AFR heads back in 1995. They were a set of 195 Chevy heads for a 383 I was building for a street rod. They came in and I was AMAZED! The CNC port work looked AWESOME. I had never seen a head that literally needed NOTHING DONE TO IT. I had taken the grinder to every set of heads I had ever purchased.... until this set. It was great! Here was a set of heads that you could literally take out of the bag and install straight onto the engine!
Back then, I ordered straight from AFR, and they went through all the options over the phone... drilled for temp gauge, springs, retainers, valves, etc... and they came with my name hand written on them with a Sharpie.
They had no plans on ever producing a Ford head back then. (I asked them) But, once the Fox body mustang really took over, they jumped right in.
To this day, over TEN years later, the competition has still not caught up! Some offer limited CNC offerings, but the price is high. AFR has GOOD heads at EXCELLENT prices.... once the quality of the port work is taken into consideration.
Only bad side... You used to have to be good with a grinder to be one of the FAST cars, but now, all you need for a DAMN good set of heads is a valid credit card!
Joe Sherman isn't going to tell you a load of crap in order to sell you a set of heads. He is GRACIOUSLY donating some of his time to come on here and help people out. I would suggest, that when Joe speaks, you LISTEN.
GT40 X heads are flat out JUNK compared to the AFR. That's just how it is.