I seen this post & it's probably answering my question...
http://www.6x6world.com/forums/argo-...rgo-hoods.html

Today was the first time since picking up my Argo late last fall that I took it on a long drive.
Mostly along an old RR track bed, I kept it in low most of the time since it's a lot easier to handle on the tight woodsy trails & better engine braking on the hills.
I had the top on with the side windows out....it gets warm inside.

So after reading the "Argo Hoods" post, I take it warm air coming from around the firewall is normal?
The engine didn't seem hot & mostly felt the warm air when in high gear crossing a field.
I don't think the top will be staying on when it gets warmer out.