I've been running the marval carb on my C-85 stroker since new. For heating the carb I use https://www.aircraft...elongezcarb.php hotbox from Aircraft Spruce. This issue is, I ceramic coated the exhaust. The positives are that my CHTs are always perfect. Never even come close to overheating. The bad is that hardly any heat come off of the exhaust pipes. Therefore, pulling the carb heat increases carb inlet temp by 1 paltry degree.
My thoughts are to go with the AeroInjector due to its ability to resist icing.