Q: when i take off it tends to go kinda slow and when it shifts into 1st on 1991 Chevrolet S10 Blazer

Rookie cbe0621eac06868b3efe0d8d1d3611e23c60d3114864ea2ec19a68cfbd3eebab
it hits really hard like it has a shift kit maybe i just purchased it a week ago
(1) Answer
If you mean when it shifts then suspect broken accumulator spring, seviceable externally by trans. tech. That's my guess!