mstng675l

Hey all i was wondering how much my fuel flow is hurting me... I have the mods listed below and still have 19#,stock pump, stock reg.... I have the BBK reg just waiting to be installed... So how much is the stock stuff hurting me??? Also im not sure if the problem is related but i was just wondering why my check engine light comes on at WOT in about 3 gear.... It doesnt come on through 1 or 2 but when i hit third it comes on... If someone can help me out it would be greatly appriciated...

Thanks in advance...

stanglx2002

with those heads you need to get 24's but get that AFPR in a increase the pressure to about 42 that should help a little but you need to change the fuel pump to a 155 and get the 24's in there