why, I dont know. I figured if i go to #6 i would hopefully prevent this from happening again, but it doesnt really matter i have the 300degree setup with 608cc injectors and i did the OEM serial feed setup which should feed all banks equally. As added insurance I will do the Aeromotive FPR fairly soon so im not going to stress over that really. I have more then enough fuel to support all cylinders with my setup, dont you think?