Im new to the forum and i need some advice. I am considering buying a 1999 Classic XL with a Cat 3406E 500HP 2WS engine. The head gasket blew,engine needs a rebuild,block deck needs cut and a turbo. Truck had no injector issues before hand and we drove it for 2 days. Pulled great,its hooked to a 13 speed and 3.73 rears. I dont think it needs injectors thankfullly. Would be working on a tight budget. I would be rebuilding the engine myself. What Pistons would be good for this ? Hoping to put a PDI turbo on it and get a tuner from them too,shooting for 700ish. Any Suggestions ?