Need general info on engine

[jetmech]

I may send my converter back for rework and they need specific info on engine and trans.
stock compression ratio
bore/stroke-stock
header size-stock
and also i have a th350 trans and they need to know the 1st gear ratio
Thanks

 

[SHADOWII]

compression=8:1
borexstroke=3.8x3.4
th-350=2.52
hdr=1.5