slight blue smoke

[nate41102]

94 cobra 128k mods in sig

I did some racing Saturday and all seemed fine with the car. I drove the car home, sunday I got out and did some crusing and started noticing a burnt oil smell and smoke coming from tailpipes. I figured I had finally damaged a hyper piston. well today I did a compression test and results are
1 - 165
2 - 170
3 - 170
4 - 165
5 - 165
6 - 170
7 - 165
8 - 155
I did this after letting motor idle for 30 minutes twice and got exact same results. not the results I was expecting to get.# 8 is a little lower but still within 10%. none of the plugs had any oil on them and car seems to still run fine. It isn't low on power or anything. valve seals was replaced around 5 months ago when upgrading valve springs.
car smokes hot or cold, puffs a pretty good cloud out when reving.
i also run a turbo coupe pcv valve i removed it and all checked ok
any one have any ideas?