408 cooling issues

The reason it heats up on the road is the thin shroud . Been there done that !
Or an unsealed carb to scoop pan.
Yep,
I didn't seal the scoop to the throttle body. I had it sealed when I had the supercharged engine but haven't gotten around to sealing it on this one. The engine is coming out this weekend (for the 3rd time) to fix a reoccurring main seal leak, maybe I'll just address it then.