Auto shifting to quick!
I have a 69 chevelle with a th350, when i have it in drive(3rd) and floor it it shifts way to fast out of first, it doesnt go past 3 grand. it takes off then shifts and the rpms arent up enough and so 2nd starts to early and it slows down then starts gainin speed. but if i have it in 2nd it will go to 4 or 5 grand in first then shift. does anyone have a clue what is the problem. is it my kick down or something in my transmission?