I drive a factory stock and our rules are basically 4412, unaltered heads, intake and exhaust manifolds. At idle my car will hold 7-8 psi of fuel pressure but when I get out on the track, after 2-3 laps on the 3/8 mile track it falls to 0. After that it will go for about half the straight then coast around corner and come back to life when I hit the straight for about 1/2 the straight again and continue on like that. Heres a GoPro of what I'm talking about, problems start at about 3:18. We have brand new fuel filter, pump and no foam in the fuel cell. Any help would be greatly appreciated