76 360 motor

This is back to basics. Timing first, easily checked but somehow I do not think this is the problem.

When you stomp it & it bogs, it usually means it is lean...not enough fuel...but not always.
Remove the carb top & check float level, should be 7/16". No gaskets needed if you are careful. Check for dirt, passages clear & that sec velocity [ air ] valve moves freely; check that throttle linkages moves freely. Check to see that choke flap does not move around at operating temp. Check that you are getting a squirt from the acc pump. Check jet sizes.
If there is can open carb spacer under the carb, get rid of it.