0 degrees btdc
305
About 170
there is a brown or brown/white wire in the harness near the firewall. it must be disconnected to set base timing
6 BTDC
8 degrees.
6 degrees btdc
6 deg BTDC
MY CAMARO STOCK 305 1991 HAD 170 HP 255 TORQUE YOURS SHOULD BE THE SAME WITH TBI LITTLE MORE FOR TPI
Bring it to a shop and have them adjust the timing with a timing gun I believe its 6*
6 degrees before TDC should do the trick
I have a 91 rs 305 v8 and get about 19 mpg.
they are behind the water pump looking strait down from the top of the engine