EFI -3G hemi

I called the FAST tech line, and asked them if I could put the fast EZ on a 6.1 hemi. He said it could be done. You would have to change the injector wiring plugs which they could provide but use the factory injectors and of course go to a cable style throttle body. On the sensors worst case you might have to change to gm style like map ,coolant,etc. but not sure of that , most sensors gm to chrysler are very similiar as far as the way they work maybe you could get by just changing the plugs on those too, would have to check that out, still this setup is a lot cheaper than the full blown fast hemi kit. The hemi kit is more of a plug and play ready to go and no doubt a nice setup ,but the EZ is more for us on a budget that dont mind a little retrofitting.
The hemi kit is $3119 on summit:

http://www.summitracing.com/search/?keyword=fast xfi hemi&dds=1

Off of fast website:

The multi-port wiring harness is pre-wired for common GM sensors and labeled for a simple installation. However, FAST™ offers a full line of compatible sensors, injectors and adapters if needed.

Found sensors off of FAST online website :
gm coolant-$10.25 (cheaper than changing the connectors)
gm Air temp $10.25
gm Map $41.15 (which I still believe the factory map would work with connector change, they are both 3 wire,5 volt ref,gnd,signal return)

I was looking at my hemi and it looks like the gm coolant sensor has the same threads as it does ,just thread the gm one right in and plug it in, the map(run a vacuum hose and plug it in) and air temp (plug it in and mount in air intake) and the throttle body from edlelbrock already has the gm sensors you need on it , the EZ harness has these exact connectors already on it, just change the injector plugs, which you could solder your old ones to the new harness or new ones from fast.