If your considering a head gasket change look @ the size of the gasket bore compared to the engine bore, If you have any dead space in a larger gasket bore you can find some more cyl pressure there

As a couple of us have said now,if your quench needs fixed it will help some. Maybe not a full 2 tenths though.
Combine that with a few other things,depending on how sorted out the car is and yoyo can get it. I would think that cam would probably be happiest in at 106 if I were to guess based on the cam/ compression and what you have given us.
Keith

Thanks for all the help guys...I have my answer
Dan

I can advance timing 4* by changing the timing gear slots.....would it be ok ?

I already have lots of top end power, doing so is supposed to give more low end torque and cyl presuure....so I read

Dan