I put the air box on and adjusted the idle air screw for the idle and it runs great. Now as far as the speed goes when I get to wide open throttle the engine gets there but it does not seem that the transmissions gets there. In other words I think it should be going faster then it is. I figure right now about 20mph. I had my wife follow me in the truck and she said she was doin about 20 mph. Does that sound right?

 

For a stock 50, I'd consider that OK.
Glad you got it going.