Originally Posted by Bulldawg RC

I understand that, i have been racing for a while. I was able to get easily over 8 minutes with a box stock vspec with the same pipe and fuel. My question was what can i do to improve my fuel economy. I just changed my venturi, I checked my throttle epa and adjusted it. I also ran a second fuel filter. I am going to run 25% fuel and see how the run time changes and will let you guys know. I also have a ofna 086 pipe on order and see if it helps. This is a modified motor not a stock P7R.