Well that depends on how fast you wanna spend.
You could have your crank rebuilt with new rod and bearing or you could go with a hot rods +4 stroker. Now the top end kind of depends on the bottom end but there's ways around that. You can do a standard bore or 85mm 366 10.5:1or 12:1 JE piston or you can do a wiesco 10.25:1 or 11:1 in STD, 83.50, or 84mm. With a stroker you need either the vertex piston, a spacer made to use regular pistons, or a Kodiak 400 jug milled down to the proper deck height for regular piston. I would recommended a port and Polish on the head and a cam to tie it all together.
Basically you need to give us some guidelines of what you are wanting and how much you can spend for us to better help you.