Did anyone running a head and cam package and an S-trim have problems with the idle and surging with the stock pcm right after installing it? I turned mine on yesterday but it appears to be running extremly rich and surges really bad with I try to accelerate it the car dies out. I have yet to dial in my timing and adjust the throtle but wanted to get some feedback from someone running a similar combintation. I do plan to have a custom chip burned but now with this it looks as if it will have to be very very soon. By the way this is on a 94 cobra.