I have twin disc transmissions. My engines are far forward, pulleys are all the way against the buikhead. The headers have about a half inch to the stringer. I dread changing plugs. The super small hatch makes it fun to pull the engines, they only clear at one angle and turned.

I reallly like the way that 26 turned out with the single!

what x-dimension for the single drive and how did u come up with the measurement?

I think it's 17 or 17.5. Ernie (Boxer) provided the input. Are you working on a single 26?