Ran the 110 Pump back when that was all you could get, for a while and it did drop in different locations on a pass. I also ran a very big line and big filter with no kinks and slow curves in the line up to the regulator that was beside the Carbs. Being a stick car with a violent leave I knew I needed more pump. I would spend the money on it once and buy a better pump. There are a lot of fuel pumps that do a much better job than the 110 Pump and are not that much more money. Usually a pump pushes better than it pulls so location of the type of pump you are using has an effect of performance of the pump.