hello,i have a 2000 zx7,i bought it for $2,200.00 it has a salvage title,but thats ok because i wanted to make it a track bike,when i took it in to have the carbs cleaned and synchronized,they noticed that there was antifreeze in the pan,and they said that it could be a cracked head,a head gasket,a crack in one of the cylinders,but they said that just to find out what the problem is will cost like 375 bucks,and if it is a cracked cylinder its like 850bucks for a new one,he also said that to find a new or used motor will be impossible or very expensive,cuz everyone uses them for those sprintcars (and the gsxr1000 motors),should i have them tear it apart and find out what is the problem or will i be just investing too much to where i can buy another bike,i dont want to because i love this bike,please let me know what you think........