Twin Turbo Roller?

OK I did something most would probably call dumb when I was 16 but it worked. Took my /6 small can and lifter kit offy 4 barrel intake then welded in a turbo from a semi about have way back on the exhaust I'm not sure how much it helped the car ran mid 13 in the quarter. Was a 74 dart sport BTW. Never blew anything but I only drove it another 6 months and my other brother got it towed due to him not having a license. Again Idk if it helped or hurt the car I've never looked into turbos we were just screwing around sounded cool though and was pretty fast for a slant. Not recommending anyone try that lol