help
i have a 8.5 to 1 468 it is actually a blower motor without blower,has 825 demon carb,msd7al3ign.it is in a track car,my problem is when i go to track it runs fine for the first pass or 2 then it will start missing in high gear,i have a glide,i have tried carbs ,jetting,checked fuel pressure and volume,and plug wires.any ideas where to look next would be appreciated.