What kind of brought this up was not only the recent crashes but also I noticed on my firewall blanket, the gray covering has some some heat damage. This occurred before I got it and the engine only ran 17 hours so I want to make sure I do everything I can to prevent a fire. I too have all aluminum from the header tank to the aux pump and then all the way to the gascolator then firesleeved rubber hose to the fuel pump. I am concerned about the exhaust system and was thinking about maybe wrapping the exhaust pipes that are in close proximity to things that can melt i.e. firewall blanket covering, heater hoses, etc. with that exhaust wrap that you can buy for wrapping headers. Seem like this would keep the heat inside the pipes. I attached some pics of the damage that I am talking about.