i just did a b18c1 swap and i am having a few problems. my tach and speedo jump a little during sustained high rpm driving (+3000rpm). i have hid headlights. they are the dual beam. they flicker when the rpms get up in that range too. do you think it is a ground problem. i am using all factory ground locations but i was thinking of upgrading the cables. do you think that would help my problem

ryan