High compression with aluminum heads and pump gas???????

duster360 said
Long story short, bad machine on the engine the first time. The pistons were down in the hole on the shallow side of the block .010". Now he block has been square decked and .006" was cut off the shallow side and .022" off the other side. Which will put pistons about .004" in the hole. Need to recheck when I get my engine back to see exactly where it is at.
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That is an impressive amount of deck mismatch. Sounds like the thinner gaskets is were I would want to go with the pistons .004" in the hole. With the tighter bore clearance on the hypereutectics, it ought to reduce any piston rocking and help the lower clearance. Either way, it sounds like you have a good handle on things.