Jeff, All kind of stuff on heat muffs at http://krbuilder org/FirewallForward/index.html
We used Jet Hot and with the system I am using as described above, I get over a 100 RPM drop when I apply carb heat. I am expecting that cabin heat will work just as well also. The pipes cool down very fast. We were running some tests at WOT and after turning the engine off, within a minute or so, the pipes were cool. I saw some other posts about coating inside and out, and, that is exactly what Jet Hot does. I don't think you can beat it. I did not mask off any areas for heat muffs. If the pics and narratives on the site do not answer your questions, just let me know. See N64KR at http://KRBuilder.org - Then click on the pics See you in Mt. Vernon - 2006 - KR Gathering There is a time for building and a time for FLYING and the time for building is OVER. Daniel R. Heath - Lexington, SC -------Original Message------- When using a carb heat muff, do you need to mask off the area under the heat muff so as to not allow the jet coating in this area.
