Originally Posted by Richiehd
Why are you mixing oil weights? You live in Florida, you have a motor that probably has a little extra clearance in the bearings. Use a 20-50W Brad Penn RACE oil if you need the ZDDP. or Valvoline VR1.
I agree, no need to mix a magical concoction, but I'd go with 5W40 Mobil 1 unless you have an aggressive flat tappet cam. Also, think about changing your pump if you didn't when you rebuilt the engine, the pumps can wear a lot depending on the oil/filter you used in the engines prior service life.