I was told another member is doing the same thing of cutting the rear of the Fiero frame out to use a tubular frame and bolt in a Northstar transplant cradle and all. So here are the few photos I have of the tubular frame being welded up primed and painted and I think I have a at least one shot of the frame and engine together before I welded it into the car. I also included all the work I did before when I did have the Chevy 350 engine in mounted to the Fiero transaxle using a Archie kit. That all got tore out and has now been sold and replaced.
Feel free to PM me with any questions.