Originally Posted by bassman2

Just a FYI, I've ran the NOVA 35 plus .21 engine for the past 2 years in my GT cars and never had the engines above 270 degrees. Usually my 35 plus .21 engines run between 240 to 265 degrees. All my engines have original heads on them and never had to switch to different heads. During the summer I run colder plugs and during the winter I run hotter plugs. I use 25% VP Powermaster fuel.

Andy Liu "Flyin' Hawaiian"