i went and spoke to the guy at wizzards of NOS as ther only about a mile away from me and they were very useful. There main point was dont be tempeted to buy a budget kit of ebay as they spend half their time fixing kits people have bought that dont work. direct port injection is the best however is more expensive.

heres there website
http://www.noswizard.com/

all i can say is give them a call and they will tell u everything u need to know, or even pay them a visit.