Effect of Heads with compression difference = 35 psi?

[lockeal]

I tried posting this in the NA forum but no responses so I figured it would also apply to a turbo car sa well:

I had a cracked head on my 91 DOHC so I bought a rebuilt one and had the other one rebuilt by a local shop. The car has a hesitation/miss under low load for the first 15-20 minutes of driving and then is fine. Always plenty of power and no problems at WOT.

My compression #'s in PSI are below. The first number for each cylinder was with the engine warm. The second number is with a litle oil added.
1 175 190
2 150 185
3 170 ---
4 155 200
5 180 ---
6 145 190

All are above the min 139 psi in the manual. However, the 35 psi compression difference from high to low is well above the 14 psi limit in the book. It doesn't say what will happen if there is this large difference like this? Will this cause the hesitation when cold?

As the low compression increases with the addition of the oil, it indicates bad rings/piston but they looked fine with cross hatch and everything.

I also just checked the compression with the engine now cold and the range on the back cylinders still varies from 145 to 155 but the front cylinders now only go from 150-160. I had originally checked the front with the plenum on and opening the throttle body. I had checked the compression on the back cylinders without the plenum of course so maybe that was why the the front ones were higher??

Does this mean I'm OK and should look elsewhere for my cold hesitation problem?


-Adam