'74 C10 Intercooler options

[epfatboy]

I just made a few dyno runs and we believe the numbers are coming up short due to the intercooler size. Right now I have my IC mounted under the radiator between the frame rails. This limits the size of the intercooler due to width and depth. Below is a shot of where the IC is mounted.
https://photos.app.goo.gl/8PHrxRCgppeBpyCC6

I have a much larger IC and have already cut the frame rails back so it could fit but I worry about the depth.

With that does anyone out there have some recommendations on IC's which fit into this space?

NOTE:
I'd move it up in front of the radiator but there is no room as I have my tranny cooler there and a AC condenser.