Elwyn

Hi guys am new here was just wondering about some info on a silvertop td42. Iam about to fully rebuild it and was wondering what mods to do to gain more power, i do intend to turbo it so what cam, do i bore it and go oversize etc etc. What intake to use, exuast etc. With a budget of $3-4k already owning a turbo and possibly intercooler, any info would be appreciated cheers