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Message: [QUOTE="R&D Injection, post: 1431883, member: 19712"] Over 3,000 views since my last login. Hmm, I really stirred something up here I guess. I'm not a vendor here so I'm not going to try to sell anything. I am going to respond to some comments of people that have good questions. The big shop nut swingers or anyone who has negative comments, please start your own thread. There are places for people to learn, and I would like this thread to answer some people's questions. We've done extensive development over three course of a year on the heads. Mainly because I like the platform and see its potential. Our goal unlike many other shops out there is to maintain a small port, keep airspeed and swirl up, and while doing this, increase cfm across the whole valve lift curve. When you maintain port size and increase cfm, your gains are always only postive gains. I'm not going to get into all the details until I do right by this forum and pay for my place like everyone else. I will post a couple flow charts so all your naysayers can see for yourself. Here are the basics. Stock heads flow 180intake and 160cfm exhaust stock size valves. We've touched up the intake bowls and developed a very different shape on the exhaust port. The exhaust port flows very well and from our numerous designs, we decided to enlarge the exhaust port slightly while maintaining near stock cc intake bowls. Our gains for the small amount of work we've done to these, have been very impressive. I will post stock flow and then a sheet with intake and exhaust flow after porting. These aren't your backyard hand ported heads like some are speaking of. These were developed over the course of a years worth of development and we are happy to have something for people to have for bolt on power, torque, spool, and most of all, a broader effiecient power curve. I will bring some solid numbers for those interested at the beginning of the year when we've paid for our place on this forum. [/QUOTE]