Specs Original Camshaft 340 from 1972

thanks to all the experts and their comments and sorry for my rusty english ;-)

to explain what i am searching for is only to replace the old lifters plus camshaft and timing chain. all other 43 years old parts have to work with the new parts. i dont want to rebuild the whole engine. in germany i only drive on the street - here are no dragraces or quartermile races ;-). i have not anything against power and burnouts but i have to find a compromise so that the old parts will work with the new parts. to much performance may brake the old parts so the question is - what is the best set ?

regards from the german rookie ;-)