Sorry I was getting a package ready to ship and missed this. I got rid of five stock heads here years ago for 50.00 so I didn’t start working on one. Back then I didn’t have a valve a seat machine so everything would have been out of pocket. It’s been so long since I looked at a stock head I’m not sure if it could be tubed or not. I do know water lurks on the shortside because I followed a J or X head porting post on the Flowbench forum. He had them flowing pretty nice if I remember right. We have a friend that runs easy 9’s in his barracuda so power is available.