5-8 psi max on stock internals 10 psi is pushing it..
yes get a s-afc
you need all the turbo stuff(turbo,exhaust mainfold,i\c piping, b.o.v. fmic..ect.) i would sugets to do your fuel sys. get ahi-flow fuel pump and maybe some 450cc injectors. get new plugs and wires. with a turbo you also need to run a oil line to your turbo that means drill and making connections in your oil pan.. i say go get the kit itz alot easier and less chance of screwing up your car..
good luck
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