1937 ULH Starting issue

[shinedogg]

Hey, I have the same problem, I bubble tested, fixed leaks, checked timing 50 times. She finally started tonight with starting fluid, wouldnt start again. Compression 45 psi. When she ran, she sounded great, so not timing, carb responded good. M55, new everything, float triple checked. Great spark. Can someone suggest something or post a pic of your timer when the timing mark on the flywheel is in the window after the front intake closes?
Thanks, Steve

BTW 37 ULH. Is the compression too low? supposed to be 5.7-1, but the math escapes me.