318 with 360 heads milling : small valves

I have the 318 in my fury ( 71 engine ) and i have a 77 360 on a stand , i was thinking of milling the heads ( 360 ) to put on the 318 to help me out with the choice of big ports 340/360 aluminium intakes... will it bump up the compression to 8-9ishhh compare of loosing some ( 7-ishh ) thx guys , the 68fury is built to be a simple driver with some "umpfff" and still be a good economy and regular car that can keep with traffic and tow small stuff once in a while ( travelling )..thx !