Need carb and/or timing help

I tried this and was able to stall the car out.....although I dont recall if the idle improved at all before stalling, so will have to try again.

I changed out the 750 eddy performer carb for a 600 and still no real change......so that would seem to rule the carb out....

Although I still have yet to try changing the rod springs out from orange to blue.....dont really want to drill the 600.....

I yanked the valve covers and confirmed I have J heads and non adjustable rockers....