[gman99]

If it's hard to start after its been sitting then you are losing prime. I fought that problem at various times with my truck when I had the stock mechanical pump. Once I switched to the electric pump I can leave the truck sitting for days and it starts the same as if it had just run an hour ago. It should start the same regardless of how long it's been left sitting if everything is as it should be.

Those batteries sound weak or your connections are weak. That's definitely not helping the cold start manners at all. Mechanical lift pumps like a little more rpm to start cleanly.

I don't really feel the need to address the blow-by you know it's not good!