SOHC trouble

[DS562]

so i try and start my car but on the first try it just cranks and cranks, then i turn the key to the off position then back to start and it fires right up but bogs if i dont give it some gas. it still wont hold idle untill it gets to operating temperature. i know theres a vacuum leak and there might not even be a thermostat, but could there be anything else causing this? i just want to get all bases covered so i dont forget to check something while im changing intake gaskets.

thanks for any input.