Does anyone know if you put 305 heads on a stock Chevy 350 what would be the outcome More hp or torque?
Depends on the heads. I have a set of 305 heads on a 355 and it runs hard. the heads have been machined for 2.02 and 1.60 valves. A stock set works to but look for mid 80's with a small cc. The main point being the smaller ports(intake,exhaust) will give you a boost in torque, but it will also raise your compression ratio. Don't forget to factor that in if you are,or decide to run power adders, or simply something that would cause an increase in your engine timing, because you run the risk of detonation.
An outcome is what actually happens, while the probability of that outcome is how likely that particular thing is to happen. Say I was flipping a coin. The probability of the outcome of heads is 1/2 because there are 2 possible outcomes and heads is only 1 of them. Then when I flip the coin, it lands on tails. The outcome is tails.
According to GM Shop manuals Cylinder Head Bolt torque is 60-70 ft-lbs. I have found that if you follow the procedure to progressively increase torque in 20 ft-lb increments as you follow the torque sequence you will properly seat/seal the head gaskets. This is true with either steel shim or "sandwich" gaskets. I also re-torque the bolts one additional time within a half hour after I have set the total torque.