For those of you that have put restrictors on(2005 models) the fuel system w/ guages what does the stock fuel pressure on the F6 usually read and what is the lowest safe settings you've tried? I've seen alot of talk on the F7's but didn't know if they run the same fuel pressures. I know ever sled is different but I was thinking of doing this and was wondering how much I would gain. Any dyno info on the 600's? Any one experience meltdowns by dropping too far? If so how far did you drop the pressure? Thanks guys. I will be using Speedwerx1000 set up if I do it!