Mach2

I'm going to see a TII later on and I wanted to know what the compression is supposed to be for the TII. If I'm not mistaken I think it's the same as a 3rd Gen, in which case I know the numbers. Anyone know if I'm wrong? I think the earlier 2nd gen's had 8.5:1 rotors which had lower compression. Am I correct? Need help asap!! Btw anything I should look out for? The car has a 75 shot of NOS on it which I really don't approve of, especially on a rotary engine, but...I'll go check it out and see what it's like. Btw it's a White 10th Ann. Thanks in advance.