Question 3
 

When I'm on the Highway I have to put it into L2 to jump to higher gear, if I just floor it it lags picking up speed. Secondaries not opening?

Proper kick down cable adjustment? That's what I'm thinking....

You have a TH350, or TH 400?
The kickdown isn't kicking.
If a 350, the cable is disconnected or misadjusted.
If it is a 400, you'll have to ask someone else.

I was thinking Kickdown, I checked it but I'll check agian.

Could be kick down cable ain't kickin' down. The trans should drop down to L2 when you floor it. (we are talking T350?) Make sure your floor area under the pedal is clear of stuff (beer cans and such).

Yes TH350, I cleaned all the beer cans out yesterday but there might be a few more under the seat.