I was just watching You Tube tonight, Hot Rod Garage and they said never block the heater out lets it was big trouble, you should loop it if your not going to use it. I don't know I've never had an LS but figured I'd mention it. Anybody know for sure either way?
https://www.youtube.com/watch?
v=4UGlYx_Cjjo&list=PLGvTvFzdMg_PbG7_1TPiABMmItllqq Fbb