where do the hoses route to? I know one needs a vaccum source but from the intake manifold or TB? The other I'm not too sure about.

BTW, this is for an LT1 transplant into an RX7.

 

From Shoebox's Tech Pages:

http://shbox.com/1/opti_vacuum_conn.jpg

That connection is on the drivers side of the intake. And that's the line with the little blue/white filter and check valve.

The blue plastic elbow on the air supply line goes to the intake bellows, between the MAF sensor and the throttle body.

 

thanks, that's what I thought but wanted to make sure