Sniper EFI Temperature Sending unit

Hey there guys.....Got my Sniper EFI and starting to do the install. I have an Edelbrock AIR GAP intake, but CAN YOU GUESS.....the GM style Temp sending unit is too big for the two holes that I can use. Anybody else figure out how to hook this up? Says that the sending unit needs to be in the water flow, and I'm pretty sure I'm going to have to drill and tap the inner hole. Just have to figure out the size of the sending unit hole. Or would an adapter work as well?...

Sniper EFI Temperature Sending unit
Author: dewsky