i have ran my new rc10gt with a os.18cv-rs(s) and it seems to get brown marks all around the tube coming from the engine that goes to the muffler is dont kno what its called but is this normal i have been runign my car rich and i was wondering if this is a good thing or a bad thing im a newb to this stuff so please help

are you talking a bout the header-manafold?

its the thing that has all the red stuff on it connected to my engine in the pic attached

yes thats what i was i was talking about mine has like brown crap on it and i dont kno why i run my engine rich

my guess it that you have a bad gasket on the header or the header bolts are lose, or even the cooling head could have came lose

its alll good man -normal really, you can use -easy off oven cleaner to remove it easily-works better if you heat it up w/ a heat gun or do it right after you get done runnin it. better running it rich than burning up that mill....

yea but its still not right...
thats why i use silicone and my own[8D]

also keep in mind that dirt can easily get caked onto the manifold because it gets very hot.

k thanks for the help. i didnt kno what made it look like that. but when i got my car from ebay the engine in it had all that crap on it so i put it in a crockpot with engine coolent and it took it right off. if u have a engine with that crud all on it put it in there and take it out the next day n itll look like new. i did it with a plane enigine i got of ebay n it looks like it just came from the factory.