i may at some point. i have talked to them before about my aero setup. but before i actually bought anything, class rules changed and i decided to stay with stock aero. did not know they used the oem type RA block in their racecar. i'll have to reach out to them. I currently have an IAG block, so i'm good for now, and hopefully will just refresh it, but it would be super nice to be able to get a cheaper RA block should i ever blow the IAG one lol.Flatirons Tuning in Colorado runs an RA block in their Pikes Peak race car. It makes 420’s on e85. You can email them. They have a youtube channel and are responsive by email if you ask them questions. Knowledgeable shop.