i am new to the whole tpi thing.i've been working on tbi's and carbs.my question is about the throttle body.there r a bunch of fittings on it and i don't know where it all goes.i know one on the passenger side goes to the valve cover for ccv but thats all i know.can someone post a pic or explain where they all go?any help would be appreciated.

i looked in my chiltons book but came up with nothing......

 

http://chevythunder.com/fuel%20injec...um%20lines.htm
See if this web page can help you

 

yeah they definatly help, but are the other ones cooler lines or something?like on the iac motor housing there are a coulpe.what r those for?

 

The fittings on the bottom of the throttle body (the one that comes in from passenger side and exits more toward the drivers side facing the front of the car ) are for coolant, but you can bypass it with some hose to keep hot water from heating up the air in the throttle body.

 

so basically i can just plug the 2 that r on the iac housing,correct?

 

The ones on my car are just open. I didn't want hot coolant going through my throttle boby

 

why would coolant evan have to pass through that housing?

 

thats for winter driving up north when it 30 below. GM didn't know where the car may be Canada or Miami

 

by the way the motor is going into a 67 camaro.i am going to eliminate the purge canister so i guess i can just plug up the ports on the throttle body, right?

 

i just checked out my throttle body.there is 1 more real small one on the botom, what is this for?egr maybe?

 

Yep, EGR solenoid.