how much can I cut off stock replacement cast pistons

ok before you think im retarded here,  this is a BUDGET BARNEY build. I am an engine machinist so all machine work will be little to non,  I have a set of replacement cast 350 pistons ($50) with the huge 36cc dish, and yes thats what it calculated out to. with the 36cc dish, 0.000" deck clearance and stock heads with a 64cc chamber will give me around 8.0-1.  I want 9.0-1.  if I mill .050" off the heads to bring the volume to 55cc's and mill the pistons about .060" which will give me about 26cc's I will get about 9.0-1, so by milling the pistons the top ring will be closer to the deck surface so I will leave a little bit more clearance for my ring end gap.  And yes I know I will be milling like 0.100" off the block, and Im not going to spend $400 on pistons when all I have to spend money on is rings and bearings.  When I say budget I mean budget.  

have you checked out the claimer pistons available through several piston suppliers..

they are really cheep and have the proper compression ratios and deck heights you need.. they used to cost wholesale under 10 bucks each...  

the whole idea of the claimer pistons is to reduce block work needed and  use 76 cc heads and still get the proper compression ratio to run  races and win...

and keep the price down...  

Ya I would get the right pistons.  
Professional hi-performance engine builder

Horsepower sells Engines and torque wins races.

the only available pistons for the olds 350 are stock replacement cast pistons or the speed pro forged pistons, or I think aries makes a set as well  ***   I mean speed pro makes a hyper pistons for the 307, come on,  how builds a 307 really.  but I came up with a different plan,  will end up costing about as much as forged pistons but the bottom end will be able to handle a lot more,  grind the rods down to use SBC rods,  I will be using a set of rods out of a chevy 5.3L which are powdered metal, and chevy 400 hyper pistons. to make it work I will still have to cut about .025" off the pistons but the rods are a lot stronger. Forged pistons arent worth the money if the rest of the engine cant handle the power the pistons can  

what about cylinder heads, I only need about $400 worth the parts for this thing to be running,  dont really want to spend another $400 on rods and/or pistons,  anyone ever milled .100" off a pair of olds heads and had problems with blowing head gaskets,  mondello claims .060" is the limit,  I dont like listening to big Joe  

got this baby figured out, I cc'd the pistons, the came out to 18.5cc. figuring out the area of the measurements of the dish on the internet was way off.  If I mill the heads to about 56cc's I can have a nice 9.7-1 compression. Not bad for the budget build of the year.