engine strugling after alt. install
 

so i installed a 3rd gen alt into my car the other day and it has been acting strange ever sence. when i start the car it starts up fine but if i hit the bas before the engine is warm it will sputer and bog down and almost die then rev up. but after it warms up it is fine. and today i was driving it and shifted hard from first to second and it bogged down and the revs droped then shot back up again. did the same into 3rd. i tryed adjusting the tps and changed it out for a spare i had but the problem w/ start up still happened and the problem on the top end just started today. some one tell me what wrong w/ my baby!!
1987 base btw

Maybe the alternator is putting too much drag on the motor at low rpm's. Have you tried your old one to see if the problem still exists?

no but i wouldnt think that was it cuz it isnt a i big brop thats constant it kind of sputters like its not getting enough fuel that what mad me think it was the tps