1993 Festiva has low power after replacing head gasket

[BombayDuck]

Hi there and thank you in advance for taking the time to help me out here. I just replaced the head gasket on my Gambler 500 1993 Festiva and I have very low power. Once I finally got it running, it idled real low but a little adjustment of the throttle cable remedied that. I couldn't find anything about how much the distributor timing needs to be advanced BTDC so I set it right on center, could that be the issue or is it more likely something else? Any advice helps and is appreciated

[WmWatt]

What is cylinder compression (wet and dry) since replacing head gasket?

[zoe60]

Also double check cam and crank timing marks. One tooth off can make a huge difference.