first let me thank you all for your imput and inside knowledge and also for some very interesting reading...
i have tried to pick an intake manifold on ebay but i just realized that i might be doing things the wrong way ... i maybe should mention that i own a holley carb P-80 # 80508-1 / 1660 . i got it from a friend that needed money about 5 years ago and it had been sitting in a box since.. and since i never got the money back i guess i have decided to use it on the oldsmobile ..
now i suppose that this carburator will work for the olds 425 and maybe i should ask you gentlemen what would be your first choice of intake manifold.. I AM NOT TRYING TO BUILD A RACE CAR but i am trying to get the 425 a good fun strong potential on the street so IT CAN BE A GOOD MUSCLE CAR AS IT WAS DESIGNED.
i would of course get the carburator cleaned up and ready with a holley rebuild kit.
so please feel free to send me your comments, thoughts, and advices while remembering that i am a very green rookie
muscle car owner and that i was born in europe so i doesn't know the muscle car language . so please write your post in rookie friendly terms .. i appreciate all of your help .. thank you
denis