Engine not as responsive as it used to be
 

i have a stock 1988 blazer 4x4 with 4.3 V6 fuel injection automatic. Its not as responsive when I give it gas anymore and it runs a lot quieter at an idle. Is there anything that can be done besides exhaust to bring it back up to speed.

an exhaust wont bring it back to life, trying doing a tune up, changing the oil, fuel filter and run a can of sea foam through and also change the air filter then you should be good.

alright sounds good. I was scratchin my head because it used to run like a charm and had that good "roar" now the past week or so it seems like a different car

Does that seafoam stuff really work?

alot of guys swear by it, if you do a quick search youll be able to find the steps on how to use it and a ton of testimonials from guys.