b_01cobra

I just recently did some performance upgrades on my 01 cobra and have ran into a large problem. I have took the old stock manifolds off ,and have the driverside MAC longtube header in. But i can't seem to get the passenger side to go in no matter what i try or do, i have the car very high off the ground and the engine jacked up as far as it will go, but i just can't get the dang thing to snake up in to position. can somebody help here with some of ther knowldge on how it is suppose go in????