Most know about our billet heads with water that have shown no sign of overheating (500+cfm not for street. ) we are in the process of casting with water. We will also be working on a 400 cfm and 450 cfm out of the box next year. They will be a stage 1&2 style head. No porting. A cast intake will follow. For now we will only have billet intakes dyno tested. The most we could get out of a S2 Head was 447 cfm. Not enough for what we wanted and no water. We originally started this project for John Everett’s Dragster only, but thanks to Jeff Strube were going crazy!