Hey I need some help here guys! I have an 88 F-150 4x4 w a 302. I think what they are calling the throttle body has a 90 degree aluminum turn on top and bottom for the anti-freeze to run through. well mine broke off and I have one off of a 91 model and bolt it on and the truck wont start. the only difference I can tell is the old one had two places for vacuum lines on the right side and the new on has only one on the right. What am I missing??