So I have been looking around for some headers and I ran across these:

http://www.jegs.com/i/Hedman/500/68481/10002/-1

I was wondering if anybody else though these would be a good option for a 92 Camaro with a TBI 305.

Note: I have swapped the stock exhaust pipes for a 3" flowmaster cat-back, but it still has the original catalytic converter which I THINK has a 2.5" inlet.

 

Yes, only if the headers have a 3" y-pipe to cat connection. Obviously you will need to get a factory replacement 3" cat.

The stock TBI/LG4 2.25" cat is pretty much a useless bottleneck on a 305 or larger - stock or not.

 

I have the same flow masters u for w/hooker shorties. Very happy. I had headman long tubes on 78 TA SBC 355 & had lots of leaks at the block. They were great performing but I had to frequently re do gaskets which was a pita. If I had choice I'd go w/magnaflow exhaust. Good luck

 

I'd personally go with either Dyno Don or Hooker 2055 headers. They are as close to "Bolt on" as you'll get and seem to be the favorite of the boards here. I personally run the Hooker 2055's and love them very much, mostly because I still have the emissions all hooked up. If you don't need emissions, then Dyno Don sells a set that don't have the AIR tubes.

 

frequently people will go buy headers THIKING they will just bolt on and be done.NOT THE CASE at all. most people have to bend,bash and/or completely re engineer them and then MAYBE they will be alright ,for awhile.to be fair ,you do get what you pay for.and because of that I would buy the very best headers I could lay hands on.IE dyno dons or hooker.and get the coated ones so they may last for a few years.BUT THEN theres the spark plug issue.you cant get to them.not to mention the burned wires . and you WILL need a starter heat shield. if you don't mind all this BS then by all means,go to it. but do be advised they come with their own issues that can be a challenge to your sanity.