I'm swapping TPI into a Emissions free vehicle, and need to know what hoses I need to run, i have the u shaped hose running from the intake up to the throttle body on the drivers side, then i have these three http://community.webshots.com/photo/...80117241OSVeZC

on the pass side, the lower one is for the heater core return line ?? I am going to run coolant through no ifs ands or buts, what are the top two fittings for ? Is it just for emissions and PCV ? I think my feed line for the heater core should run from the water pump like my carb'd engine. Right now the TPI water pump is plugged. Thanks

 

The bottom one is for the coolant, like you said. It helps during cold starts on cold days, but I think most of us bypass it, and plug it.

The top one is the PCV line that runs to the passenger side valve cover.

The middle one runs to the charcoal canister all the way over on the driver side, opposite the battery on the passenger side.