![](http://coloradok5.com/photos/data/500/14576P7150033.JPG)
(Real old old pic, but it gets the point accross)
Off the shelf 3" mysery springs, redrilled spring perches 1 1/2" forward, and 1.5" spacers clear my Q78's great. They measure a true 35.5" tall and ~11" wide. A few swings with a BFH solved all firewall contact, the rear needed some trimming obviously.