what unit should I run?

Gen VII Spark/Fuel Kit, 4 cylinder
Gen VII 4 Cylinder ECU only
Gen VII Wide Band O2 Sensor Option

and what size injectors are you running.

if you can get it to work your fuel AND your spark, I would do that. buy what you can afford.

A.D.P.
bring it on............

i think the one to get is
Gen VII Spark/Fuel Kit, 4 cylinder
the one i'm getting comes with 625 injectors

For the guys who already have one, is it the gen 7 or gen 6? I called hrc today and they said they didn't have the gen 7 ready yet.

What are the differences in the two if any?

gen 7's are supposed to be niiiiiice...

I think the gen 7 has a faster processor, which makes for more accurate fuel delivery. The programing software is also windows based, and the gen 7 can control up to 3 stages of nitrous. there are also a lot of user friendly things like an available wideband o2 sensor, and other sensors that also were availabe for the gen 6. as far as I know, the gen 7 still cannot control multiple coil ignitions (DIS).

A.D.P.
bring it on............

We currently have the Gen VI. HRC is still testing with the Gen VII. You could always buy one elsewhere and try to do the legwork yourself, but it will be a lot of legwork and you will need some patience.