ok i replaced spyder and fixed all leaks. but i `am still running rough i even got an egr valve and assumed it would fix the idle prolem but its still runing like its missing or something do i need to run it since a lot of gas got into the cylinders or is there somthing else i am missing oh yes i did a full tune up aswell and i changed the oil ran vacume check and there are no leaks present this is a 94 lazer with the vortec engine any adviewould be greatl appreciated

 

While you had the intake off, did you clean the throttle body and the IAC (idle air control) valve? A sticking/dirty throttle body or IAC valve could cause an idle problem.