I have almost a gallon through my full mod. The Hut was canceled today so me and my buddies just burned nitro on the track all day. I am going through P5's like it's going out of style. I will run a quart through the engine and give it a rest. I go back to start it and the plug will be dead. The coils are severing up inside the plug.

I have been having a hard time keeping this motor from stalling. If I come in for fuel and don't keep it clear than I will flame out as I drive down the ramp. The motor is running strong when it's running, temps are averaging around 215, it's got tons of top end. It's blowing smoke coming out of turns all the way down the straight. The coils look dry with some oily soot around the tip of the plug.

Here is my tuning rational and probably where I am going wrong. I feel like every time I come in for fuel the motor loads up. I have been leaning little by little on the bottom end to slow the fuel going in at idle. Should I be leaning the top? Leaning the top would limit the total amount of fuel going into the engine. The reason why I went for the bottom was because I felt like the top was clearing out well and the running temps were good.

I used all my P5's so a fellow driver was kind enough to loan me a P4. That was the last pint I ran on the motor but it was running real well with the P4, it never flamed out, idled well and flat out ran awesome for a good session of driving with my friends. These ailments I am suffering from are caused by me. I just need a little help from you guys to get me on the road to a solid tune. Maybe keep running the P4 and see what happens?

This motor is very, very fast, I have said this before but I have not seen the top end fully unravel yet. With the 086 pipe I have to drive it aggressively to keep it on the pipe. Nothing crazy, this thing just wants more all the time. The bottom end is a little soft, the mid comes on real strong and smooth and then it just screams out to the top all day. Is this the general consensus with this pipe and motor combo?

Let me know what you guys think about my plug popping and load up/flame out problem. I was running P5's with Byrons 25/11, temping around 215 at the Hobby Hut today.