Choosing Deck height

[Santeeford]

Im putting together an engine for my 93. I have a 5.0 block from a 91 with stock deck height. I got a pair of GT40P heads. And a E303 cam with 1.6 rockers. Does anyone have any idead on the deck height i should machine the block to for a little higher compression? Or should i just leave that part alone?

 

[5spd GT]

You can zero deck the 8.200" block.

I would mill/shave the heads to get compression, and use some aftermarket pistons to get your compression changes.

 

[Santeeford]

I already have a set of Speed Pro 2305 pistons on there way. Is there any possability of the valves from the P heads hitting?