Thank you z28rod for mentioning the post in the above link. I had forgotten about it. I just read it and it certainly says it all. This debate has gone on for some time, but I will explain soon what has happened in this industry, and why many people are understandably confused....The engines we sell have a lot of heart and soul in them. Much of my time is invested in making a good combination of parts, at an unheard of price. I strongly recommend checking out the link to a post above that I made on the hotrodders forum several months back. I'm to wore out from the PC head posting in the other sec. of this forum to write this valuable info again.