[Blown353]

I believe you mean Gen VII... AFAIK there is no Accel Gen 8 (yet.)

That being said, having tuned several examples of each my preference between the two listed options is the BS3. Much more "user friendly" software, better functioning WBO2, and available barometric pressure compensation via a 2nd MAP sensor... plus CAN-bus capability to drive a Racepak dash if that's your thing.

Both are capable systems when it comes down to featuresets... but the BS3 is much more user friendly. The Gen VII actually has more options visible to the end user (especially with the Pro key) but the amount of options available will overwhelm the majority of users-- you can really dig yourself a hole!

However, you may want to give Lance at Pantera EFI a ring... his 882C has more processing power than both, supports more accurate triggering methods (with the LQ9 you can run the 58x wheel for very accurate knowledge of the crank position). I considered all the available ECUs out there for my new twin turbo LS2 build and Lance's setup gets the nod with BS3 as my second choice.

As far as horsepower... without knowing cam specs and on pump gas at 15psi or so my estimate would be in the area of 850 crank HP (probably 725 +/- rwhp or so) and in a 3600# car with adequate traction I would expect trap speeds around 135 mph. ET would be hard to nail down because of traction issues and the 6 speed, without a drag oriented suspension and sticky tires I expect it to ET all over the place.