I leveled just about everyplace I could find, where my 8" torpedo level would rest, or my 4-footer. I put the long one on the top of the firewall, but it is not perfectly flat to begin with, so I simply moved the level down, and rested it on the top two bolts where the hinges used to mount that held up the motor cover. This gets you level from side-to-side. Then, I used my little torpedo levels on the upper frame rails, just behind the firewall. Granted you are cutting about 5" behind the firewall, but you can get things level with this method. Then, after you make the cuts, move the rear section back 11".

Be certain that the two ends that you now have (where you made your cut) are level, even though they are now 11" apart. Tack in your 11" stretch piece, and you are on your way. I made previous posts about this exact step, but be SURE you don't get carried away welding too much at a time on one side. Tack one side, then go to the other and tack it. Back and forth. If you go crazy with the welder on one side only, the steel gets so hot that you will have twisting, and things will be out of square / level.

Oh yeah, I also squared things up by measuring diagonal across the back. Use a given corner of the firewall and measure across to one of the three holes where your strut mounts, then be sure the measurement is exactly the same going the other way.

Here is a close-up shot of the frame stretch, on the passenger side. Steel tube is actually inside, in-between the frame cuts, but I also added the exterior steel plates for additional strength, and to dress things up a little more!

Fiero Engine Cradle (New Location)
I fabricated a new piece to tie-in the engine cradle to its' new location (11" further back). I think this will prove to be much stronger than cutting and extending the factory cradle. This proves to be extremely easy to do and very rigid! This is a top view.

Close-Up of New Cradle Location
Here is a close-up of the drivers-side, showing the new cradle location and how I fabricated the new cross-member and bracketry. Very simply to do, clean looking (especially when painted) and hopefully much stronger than cutting and extending the factory cradle.

Here is the stretched Fiero. As mentioned a thousand times in the forums, measure and level everything dozens of times, be certain, and ONLY WELD ONCE! This is crucial! Also, remember to go back and forth, and weld a little on each side. Bouncing back and forth allows the steel to cool on one side, while you tack some more on the other. This steel gets so hot during the welding process, that it can twist if too hot, and distort all your measurements & leveling!

Re-doing my stretch:(
Thank goodness Shaddoe (on the forum) noticed a major mistake in my stretch! If I would have left the stretch as I originally did it, the outer edges of the firewall would have been protruding through my rear quarter windows! Here is where I started cutting the firewall edges down.

Side bracing on the stretch/chassis
These angled side braces (again, thanks to Shaddoe for the design help!)will accomodate the rear quarter windows of the kit. This is just after they were tacked in place.

Close-Up of Side Bracing
Here is a closer shot showing the angle of the dangle! Talk about strong...once this is tacked to the side tabs where the seatbelts used to be, it got really strong.

Firewall edge pieces are in
This shot shows the tubing cut and welded on the edges of the firewall where I cut it off to accomodate the quarter windows.

Further Engine Bay Supports
This shot shows the firewall supports that run from the rear of the firewall to the strut towers. Again, Shaddoe's design and really makes the frame rigid.

Frame Structure (front)
Detail of adding the front wheel well and windshield supporting structure.