Hey guys... Thanks in advance to anyone who can help a girl out!

I have a 1984 Firebird S/E V8, 305 carb.

Lately I've noticed a funky @$$ hesitation when the car is going changes gears.

So basically, it feels like I'm driving a stick shift even though I'm not.

Secondly, sometimes it... lurches? I guess would be the best word to describe it. I'll be at a complete stop, idle is around 600 rpm based on my tach. and give it gas, the car feels like it's gonna die!!!! I KNOW I have gas in it, 91 octane, b/c I keep it on a full tank. Don't ask why, I just do.

So, checked my fuel line, it's fine. Checked my fuel filter, whatdya know... It's fine too.

Took it to my cousin who owns a mechanic shop, he says go get your catalytic converter replaced. So I do.

Which helped...
a. It sounds ALOT better.... Like ALOT.
b. It runs better than it did before, but not like it should.

So, now I'm a bit stumped as to what to do...
Anyone got some hints?

I'm trying to knock down every option before I take it in again, even though he's family, busta's gotta turn a dolla'. LoL. JK. I'm a poor starving college student in addition to the fact it's Christmas time... Enough said.

P.S. My stock catalytic conver. was internally combusted.... hehe.

Oh yeah. I sing. exhaust w/ dual tips... The stock muff. was replaced with a 80 series Flowmasters, I think... (Blonde moment.)

 

If the cat was melted or plugged there is a reason for it. It could be oil/coolant contamination or raw fuel getting into the cat and causing it to melt the substarate. If its a fuel issue then your cousin should be able to help you out. Common causes are valve seal leaks, head gasket leaks (the car should run poorly) or just a poorly tuned vehicle. You could also have a fuel pressure issue and the "hesitation" is caused by a lack of fuel when you crack the throttle. Not enough fuel pressure to react to the sudden rush of new incoming air. Time to go see your cousin again for his advice.