I had a lot of help and guidance from the older motor heads I worked with... do this don't do that. Believe me I wanted to do a ton of stupid crap that would have cost me a bunch and done little for performance. Best advise was the cutting weight, it is pretty much free hp.... i went overboard.
I had free hand in the bone yard I was working in... we had it all there, torches , welders, frame machine and many other assorted goodies. Yea getting it to hook was a chore. My boss had the bright idea of making tube rear upper and lower control arms with heim joints. With a lot of help and adjustments we got it to hook up quite a bit better. Then I was blowing up spider gears like clockwork... the fix... well i was about out of $ so a welder took care of my spider gear prob. You can guess what was welded.
Needless to say broken spider gears and rear diff clutch packs were no longer a problem.
You ever disconnect the front sway bar?
shop i used to work at, we had a customer with an 88 gt. he set it in his mind, that he was gonna get that car in the 10's on the original engine. he went overboard lightening it up.......including removing the heater box, scraping off the undercoating, etc. he had the car weighed, it was a tick over 2600#.
he took it to the track, clicked off a pair of 11.20's. they escorted him off the track, due to lack of rollcage. when he had the cage put in, he was right back up to 3100#.
he ran 3 stage nitrous. clicked off a 10.77. he also broke the block on that pass. he didn't seem to care though, seeing as he got into the 10's.
funny how much things have changed......the new coyote 5 liters go into the 10's with minimal work now.