Ok so many are aware that the passenger side of a BBC usually ends up with a different timing than the drivers side due to piston rock and rod angle at tdc. so some compensated with a different thickness head gasket on one side, that being said your changing the compression ratio on that entire bank. so arent you changing the power on one side vs the other? now for the main question here. ASSUME the combustion chambers are cnc'd and exactly the same so the flame travel and quench is out of the equation ok. when the technology advanced and we can now control individual cylinder timing we have started to move timing around by reading plugs in an attempt to make each cylinder "happy". So most know that I have switched to efi and LOVE it. In my amazement of what these systems can do i have started think about its ability. so WHY are we changing the timing in each cylinder and not the amount of fuel to make them "happy"? the crank, rods, and pistons are not varying they are in a solid state(except for rod stretch). that being said for example lets say cylinder number one has a very hot spark plug its clear back into the bend and this particular engine seem to be happiest with the timing mark just a 1/8 from the end of the tip. So you go in and take a degree out make a pass and now that plugs mark is in the middle of the flat of the strap so you pull another half and now its right in line with the rest. that cylinder is now showing a equal plug to the rest. now the piston is not moving different its not dwelling at tdc different than the other cylinders on that side so WHY did we move the timing. My way of thinking is the variables here are the throttle body location, the shape of the intake runners, and the shape of the runners in the head. I have a tunnel ram now with two throttle bodies not a single intake with a single TB which is what started part of this thought. Before I switched to the tunnel ram I had cylinder number 3 was really pissed off. I just assumed it was a more efficient chamber. so the heads didn't come off just the intake and it immediately became a twin to number 5 needing no timing being pulled. so that told me it was in the intake and possibly the carb? im good with the fact it was either more or less efficient but now to my main point. why are we not tailoring individual cylinders fuel instead of timing? you take timing away you are not making the cylinder fatter but you are delaying its efficiency to burn the fuel because its more efficient for what ever reason. so why arent we giving each cylinder that fuel it wants for the air it can get and leave the timing as a solid base IF the chambers are the same, the rods are the same the pistons are the same the head gaskets are the same the timing is the same. the difference is the amount of air that gets in each cylinder for what ever reason. on a fogger the amount of nitrous in each cylinder is the same as well (assuming each nozzle flows the same). im not saying I am right I am opening a barn door for opinions. maybe I am just not seeing it right.