Feels a little Weak in low RPM's

[95grandprix3100]

Hey Guys, I know all you guys out there are geniuses when it comes to this so I was hoping to pick a few brains on this...
I just did a full headgasket on my 95 3100 Grand Prix and the car runs and drives great for the most part except I cant shake the feeling that it was a little quicker in the low RPMs than it is now. In drive I can slam on the gas and it will start off at a slower pace and then doesn't start to really grab until around 4000 rpm and then at 4500 rpm launches like a screaming fighter jet. To be honest performance is still great but I really can't shake the feeling that in the low RPMs my engine had a bit more bite...
Any ideas either on what that might be or how to improve it for cheap?

[pocket-rocket]

WOT intake manifolds, change to OBD1 and tune it, K&N are what I think of really fast. Less restrictive exhaust (IIRC, stock 3100 down pipe is like 1.5" ID)- have a custom downpipe made and have a high flow cat put in, then maybe cat back to 2" down the road, but that's more expensive that the simple bolt-ons I mentioned.

[[ChaosweaveR]]

WOT intake manifolds, change to OBD1 and tune it, K&N are what I think of really fast. Less restrictive exhaust (IIRC, stock 3100 down pipe is like 1.5" ID)- have a custom downpipe made and have a high flow cat put in, then maybe cat back to 2" down the road, but that's more expensive that the simple bolt-ons I mentioned.

That would help out a bunch.

But if you're gonna do exhaust, I'd bump it up to 2.25" pipping, and add a glasspack as a resonator. While I know the Flowmaster 80 series muffler just sounds like secks with the any 60* motor, it's a crossflow muffler, and I don't think they're space underneath the rear for it. You could go with Flowmaster 40's, but I'd highly recommend a glasspack then to keep the rasp down bigtime. I get absolutely 0 rasp with my setup.

If you do a highflow cat, use Mangaflow, they make a nice difference, and it's the less likey model to set off any light with the 02 sensor after it (too much flow)

[robertisaar]

sounds like the cam got retarded..... which is essentially what happens with a stretched timing chain. how old is that?

[pocket-rocket]

sounds like the cam got retarded.....

Wow man... No need to make fun of it because it is a little slow, meanie!

[[ChaosweaveR]]

Wow man... No need to make fun of it because it is a little slow, meanie!

It may not want to reach redline ever again...

[Azrael]

It sounds like the power drop is sudden. Power loss from chain stretch happens too slowly to notice over time unless it skipped a tooth. I'd say check fuel pressure and give the regulator a look first.

[95grandprix3100]

So the weakness has gotten a lot worse and I realized that it's starting to stutter when accelerating a bit too. My expectation is it's just the spark plug wires as I knew they were going when I bought the car. It could be the coil pack too, I can rev it up and sometimes it fires right and other times I can feel it miss. Just bought a bosch premium wireset for cheaper than the duralast ones at autozone off amazon. Sparkplugs are all AC Delco stock replacements that are pretty much brand new and I gapped em just right so it shouldn't be those. I'm pretty sure that its just the wires but won't know for a few days when the wires ship in.