depends wot you got to spend,you can get bout 250hp by using a 2mm de-comp plate lowers the compression by bout 8-2-1 and fitting arp bolts,use a stg 3 turbo,with an rs1800 inlet manifold and modified frs injector rail,exhaust side an adaptor plate and erst manifold,once you have it mapped you can then save for propper internals,