now that its finally running,
when i started it up today it started right up, but whole car shook bad, after it warmed up it seemed to idle ok, but when i gave it any gas it bogged and popped, cloud of smoke came out could smell fuel, looked underneith car and my cat converter was bright red..

with out going to a shop how do i adjust the air/fuel ?? its a stock engine with qjet carb lg4 305. stock manifolds, y pipe, and cat with Dynomax 2 1/2" cat back

 

If you're dumping that much fuel it's a matter of repair, not adjustment.

 

where would i start, carb rebuild? car has 150k far as i know carb never been touched

 

So before cat started getting red.
I had a leak in the flange to the new cat back. I had it fixed (welded) no more leak.
Before leak, it idled right, ran smooth, 500-550rpms idle in drive, in park about 750-800rpms!

Now with glowing cat, idle in park (after warmed up) is around 1100-1200,
Idle in drive is around 800-900. Car shakes, bogs and pops when you hit gas and no acceleration.

Also I got the bog run with key turned off..

(I'm a month old Virgin to f-bodies, and man am I learning things)
Iv been reading alot of posts to try and fix and figure out as much as I can on my own..

I was told cat is clogged no good? I have headers and y pipe (not installed yet) I'm going to get a magma flow converter when headers get done!
What other reasons would stock cat glow???

 

I just fixed some exhaust leaks before the cat and now my car runs like garbage. It shook like crazy and had no power. Turns out the cat was bad and I have a new one in the mail

 

if its glowing red it clogged cut it out and stick in a straight pipe.

 

ok i took down my exhaust, removed cat and put up test pipe to test it, huge difference in power and idle, my new magnaflow cat is on its way to replace this bad one.. headers and new y pipe going to go on when new cat gets here!