When I did my shift kit a trans tune and a small ppe tune were put in. It wouldnt shift correctly at wide open throttle because of fuel issues. Took it all out. Now I noticed that when cold it shifts fine till 5th then the converter locks. When it locks it jumps and shudders. It dont feel right. Once warmed up it shifts fine. Is this normal? Im really picky. I just dont wanta be hurting anything. thanks.