BerBer5985

I am the new proud owner of a 1968 olds cutlass with 350 rocket, 4barrel carb. The previous owner had swapped in a super turbine 400 3 speed connected to a 12 bolt rear. I'm looking to get a little info on where would be a good place to start. It feels like it needs some front end work along with a rust work around the wheels. Any good places to start? Also, it needs weatherstripping all around. I know one thing is that the speedometer cable isn't connected to the tranny as the cable doesn't stay in it's slot. Any ideas on this? Also, where might I might a Oldsmobile 350 dipstick?? Any help would be great!! Thanks!!