hello i have the same engine with the chrome head i tuned it in the workbench and all was fine.when i put it in my h9 p47 thunderbold at 90degrees it starts to lose fuel from the carb (the first problem) and the second in the ground when you advance the throtle to full after 2 secs it overheats thing that in the workbench didnt happened.What do you believe is the overheating problem?<div></div><div>PS when i try to tune it richer it always dies HELP PLEASEE</div>