Another question along these lines...

I'm considering using a GM TBI throttle body in my turbo 292 build; from what I read in another thread, the fuel pressure regulator is integral to the GM TBI. Because the rising-rate regulator will be needed with the turbo, does one:

a) Replace the original reg with a rising rate internal regulator?

b) Remove the original reg, block off the return passages, and install an external fuel pressure regulator?

c) Leave the internal regulator in place, and install the rising-rate reg in the return line?

Any other issues with using the GM TBI under boost?