smoke

[rawfamily]

whats up, I got a s13 blacktop and have a little smoke coming from the exhaust. (looks white) And it starts to smoke after I punch it or get on it thougha few gears. no smoke at start up. I did a compression check and it was 165 all around. looked at the intercooler pipe and no oil, just dirty. I use a little coolant but i don't have a overflow tank. don't lose any power, just smokes a little. Any ideas, it's better to be safe then sorry. Thanks for any feedback. love the swap .