Hello i am new here. What is the best cam for a LT1.  

Depends on what you are looking for. Street cruiser or dragstrip runner? The good all around cams are the lt4 hotcam or the compcams 503. They make around 400-430 horses with a good set of heads. I have an lt4 hotcam that is un-used in the box. New they go for 190.00 bucks. I will sell it for 150.00 and you pay the shipping  

hi i used the gm lt 4 hot cam and valve spring set up it worked real good its the sickest cam you can put in and maybe just pass emissions.  

im not a big fan of any off the shelf cam, your best bet is to call crane and talk to them about the goals you have for your car, and what mods you have, what mods you have pland, how you drive the car etc.... and let them grind you a cam, you can ask for jerry@ crane he will hook you up and knows LT=x engines.