I had been led to believe, that it was the 318 spring. the "1st step over" for a /6 spring.
I'm glad some of you guys are still watching and responding, but that's alot of why I am putting my build, up on a site like this..... this is NOT my 1st engine build. or even my 1st /6 build. But my 1st slant, that I'm not just "rebuilding to stock specs".