just wondering what the stock size hard line is on the send and return line on a 02 silverado. I am doing a intake and fuel rail replacment this weekend and im not in front of my 02 (it is at my parents house). Also from the feed what size hose should I run to my y adapter?

 

anyone on this?

 

I'm going to *guess* 3/8, but I'm not sure...TTT for you...

 

i am at my moms and it looks like 3/8 and 5/16