Hey,

I recently changed the pistons/rods (JE 8.5:1 and Pauter) and cyclinder head (eurospec big port) and I can't seem to have a smooth idle. Actually its very rough.

Mechanic told me it might be the since there is more air coming thru, since the camshafts are different and the valves opens more.

Another expert said, the timing could be off by a tooth.

They say it should be smooth, before I can install gt28 turbo, 550cc injectors and revo stage 3.

Any suggestions?