I had a custom bike on a Kenny Boyce pro street for frame. I switched my ego onto a paucgho soft tail frame. My old primary is to short now. I need a primary with 13" center to center from stator hole to transmission shaft hole. It also has an Ultima 6 speed tranny. Does anyone know a primary that will fit this? Harley shops and catalogs only have year and model no dimensions. PLEASE HELP!