Brand new motor ?

just for curiosity do you have the head locating dowels in the block?

What they^^^said and IMO a .020 cut on the heads is not enough to make the intake have problems.if the bolts start in the holes it'll work,may not be the best fit but should'nt leak.1/8 are too thick for sure.last year i had my heads cut .100 and did cut the intake side also.i had to cut the ends of the intake so it would set down on the heads.i cut it on my mill till it fit and ended up with the ends flat with the bottom of the intake before it would work.after all that i had my first leak at the left front corner.it leaked out the front and ran down the block.i put the shit to it and let it set over night and all was good.later for a cam change i pulled it to find the intake still set too close in front.i cut it a little more and had no more trouble.  

I use the ultra grey on the rocker stud threads and should of been enough but want hurt to take them back off, clean them and redo them to rule that out. But the water seepage, .......I ask the shop would he cut some more and he said he rather not because it would take a half a day to set up for it and wouldnt be worth doing to him. He said go with a thinner gasket. Cometic said they can do whatever size i want.
Thanks

Here's how I install my intakes on my motors.  Install intake gaskets to see if they match the ports, Trim accordingly. then I put a dab of of Silicon on bottom of each port to aid in holding oil getting sucked in there, then I put silicon around the water passage port on each end of the heads, then put a very liberal Bead of silicon on each china wall so it squishes out when you torque it down. This has take care of any leaks in all the years I been pulling.
Now I'm not saying this is the right way to do it, But it makes it leak proof. Just so you know when you take the intake off chances are the gasket will rip and you'll have to take a putty knife to remove it.
Dan