new engine,what to do??

[72kool]

Ok so i came across a tbi 350 engine for super cheap. After a check of the numbers,its a 1989 chevy 1500 pickup tbi 350 210hp motor. Im going to rebuild it but want to tweak it a lil.what would you recommend,have done,dont do? Im looking into boring it to 355 with new pistons,cam,intake,heads.what setup would be good? Im not looking for massive numbers but a noticable change .thanks for your input!