Building a 360, new cam, pushrod length?

My project is a mostly stock 360, punched 30 over, w/ new stock dish pistons. New summit racing cam is 484 duration 480 lift. I'm planning to mill the heads (along with new valve job) .030 or .040 for a little extra compression. My heads are regular 360 with the 188 valves. Do I need to worry about pushrod length?
Thanks.

PS - I also plan to get beefier springs to match the cam as recommended by my machine shop.

Talk to the shop also about what intake you plan on using milling the heads you may have an intake fit problim