452 heads on a 1965 Wedge ?
Details matter.
For giggles, for a .030 over 426W
90 cc head, .039 head gasket, .050 deck...... less than 9 to one.
88cc head, .025 head gasket, 010 deck....... slightly over 10 to one.
75cc head, 039 hg,.050 deck...... 10.16 to one.
75cc head, .025 hg,. 010 deck......11.58 to one.
All above calculated with flattop pistons, with no valve reliefs. Dome, dish, or valve reliefs, are another HUGE variable.