RDI starts with a stock 2 piece intake manifold and we perform extensive porting on the plenum and runners.  Throttle body is opened up to accept the larger 52mm Holley Throttle body.   Price is for you to send us your intake to have us port it for you.  We have been porting these intakes since 1990.
 
We can also have it powder coated for you for an additional charge while we have it, if you like.