new head now bumpy idle?

[bucuu]

just installed new head on 240 sx and run good but the idle is bumpy and ideas what it could be?

[jjns13]

possible the timing is off

[bucuu]

I think I have the timing pretty close it starts fine, it almost seems like it hmmm how do I describe this, seems like it the motor is burping kinda like like maybe the fuel is hitting air pockets thats not it though cause the fuel pressure was not released any more ideas?

[bucuu]

1995 sx

[jjns13]

not off hand