Hey guys, been a long time since i been on here.. So this summer with the z has been amazing! Finally got all the kinks out of the car aka leaking gas tank etc. But then last week i blew a turbo (dont be sad i was waiting on this) i just used the stock turbos to break the engine in. And as i was about to install the gt28rs i decided to check on my heads, so i brought them to the shop striped them cleaned them and i found out that my JWT springs are not consistent(different pressures). I have driven the car for almost 3k just to break in the engine (I was not beating it). My question to you, has anyone had any problems with the springs? Any advice is more than welcome!