Callies has some really good cranks and rods, the pistons if you are looking at 12.5 to 1 available, but any different compression and have to be custom built. Their phone number is 419-435-2711
I used Eagle Crank and Rods with L19 bolts with JE 13.2 pistons, i also used bearing spacers on the mains. The whole unit including balancing cost about $1700.00, but there are better rotating assy's out there. I have turned mine to 8,000rpm and it has run 5.15, 1/8 times and 8.23 @ 158 in a dragster, never used nitrous though.
yeah well he is also one of "those" that wants a drag car with a hitch on it ya know what i mean. whats a drag car with 300 shot and only want 10:1 comp...what can ya do...oh and wants it to be the fastes car out