Angry73

Finishing up a LM7 swap in my 73 camaro and my car stumbles and pops when i give it any gas other than full. I thought it was the o2s so I bought new ones and made sure I had 12v at the plug. Still the same problem the car bangs and pops until the car gets warm enough which takes a little while about a 1/2 mile or so. I am getting some codes though
P0135
P0155
P0102
Any help is appreciated!!

-Jesse