Vac Setup for 90' 150 302
Senior User
Joined: Oct 2001
Posts: 178
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From memory the biggest one on top goes to your brake booster. the next biggest one on top goes to your cruise control. the three underneath in the all in one triple rubber thingy(5/32 lines) 1 goes around the back of the engine to the Vacuum can on the right inner fender, 1 goes to your fuel pressure regulator, and one goes to your manifold pressure sensor on the fire wall, I'm pretty sure.
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Junior User
Joined: Jan 2007
Posts: 83
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i didnt have any lines at all, so i am doing all the lines from scratch. i only have one on the vac can the other hole i cant figure out what it goes to. the pressure regulator is hooked up and the one to the brake booster and fuel tank is hooked up, so is the one going to the throttle body, but the two sensors next to where the stock coil is supposed to be arent hooked up.
