i have a 1989 mazda rx7 and everything is pretty good, just that in the mornings when i turn on the car a lot of white smoke blows off it, it also throws white smoke after a while, its pretty weird, but thats my only concern, any ideas on what it might be, when i bought it it had sugar in the gas tank, blocked the fuel pump, bought another and got the gas tank cleaned at a shop, but other than that its all.?