Coolant line through throttle body

[Jim_PA]

Yeah, I bought an Entropy aluminum rad. before deciding to do an LS engine, so I ordered without any heater returns. They also could have sent me one with the upper hose switched to the pass. side to avoid the big snake of a hose, but hind-sight is always 20-20...

I like #1, but my water pump is already mounted and ready to go. It probably wouldn't be a good idea to drill/tap it with it already mounted in place, so the #3 is probably what I'll do --

Thanks for your detailed description! -