So I'm buying a 424w. It is fully forged, Vic jr heads and intake. Anyway it has 12.5 to 1 comp. I want to turbo it so I will put the thickest head gaskets I can find. And I'm thinking twin 57's for a good 800-900 rwhp. Think that is a good goal for the 57s or should I go with bigger turbos. And also who recommends a good kit?