zstroken
For $$$ your name here
on a diesel puller i would lower compression,force feed that baby!
street i would up it about 5-10 points,you could do that with head gaskets/mill head.
if you mill the head you need to know your pistion to valve clearnce!!! but it should only need milled about .010 to do that.
my race motor is set up at .005 of clearnce at top dead center,that really really tight!!
i will see if i can find that fourmala.
you could run a smaller bowl in you head/or pistion.
or you could deck the block,inturn this will make the pistion stick out of the block,then that will change your valve to pistion clearnce. unless you destroke the motor. or use a pistion that has a diff rist pin location,thats higher up in the pistion.
hope this helps in some way,theirs more but. . . . it kinda get crazy
On the cummins milling the head will yield pretty much 0 on compression increase. You have to make the combustion chamber smaller to gain compression.