Has good compression so think valves are ok, wish I had leakdown test equipment but I think I'm good on engine block stuff
Moved my timing around to no avail. I have wondered if somehow my timing belt may have jumped a cog.
to check for valves leaking , put a vacuum gauge on manifold vacuum port , if the gauge needle has a rapid twitch to it that indicates a leaking valve disrupting the air/fuel mixture between the carb and the cylinders.
For a leak down test, use compression gauge hose & pipe thread end that goes into spark plug hole, remove the valve core, connect air compressor hose to it, must have a valve on compressor line to only allow a small amount of compressed air to enter the engine cylinder, hold/restrict engine from rotating off of the compression stroke , listen for air flow coming out of carb ( intake valve), tail pipe for exhaust valve leak, oil filler cap for rings ( you'll hear some air flow past rings into crankcase even on new engine).