just need a lil help bc im getting frustrated with this i have a gsr motor with a ls crank rods and pistons with the gsr oil squirters and girdle.....i have 310 injectors skunk2 intake manifold and a full greddy turbo kit it came with a fcu and the 310 injectors....its runnin off of stock boost i think bc it has an internal waste gauge.....and i don't have a boost controller....i have rebuilt prob about two motors messing around with this thing it keeps on cracking my pistons on the intake side and causing oil to come to the top of the head....is this due to the improper fuel mixture if so i have 440 rc will this help and also a fields sfc tuner....any input will help

 

Did you get it tuned? A propper tune is very very important. Get a boost controller.