Blueprint 408 cooling system questions.

By good I meant a true 50/50 mix. In the past I tried straight antifreeze and believe it or not had over heating problems. Went back to a 50/50 mix and it stopped (lesson learned)

What I've also figured out is you need pressure in the system as well. You can actually IMPROVE cooling by using a higher temp thermostat. Cooling an engine is about heat transfer in the radiator.

You have a couple things that are IMPORTANT in a cooling system and most of it relates to raising the boiling point of water. Antifreeze has a higher boiling point. Pressure increases the boiling point as well. Ambient air temperature is a factor as well and you can take advantage of it by using a good fan AND a shroud to pull air through the radiator. Without a shroud all you're doing is swirling air in the engine compartment. I am NOT AN EXPERT BY ANY STRETCH. I am sharing what has worked for me having been at this for 40 years and countless cars.