Honestly I have a hyper 7 PBS and the only thing I've used the box for is a fancy display stand. I'm sure it probably has enough power to start my car now, but I highly doubt it would have when it was new. Other then that they don't tell you what batteries you need for the box, so you will need to find that out or make something that works. As far as the carb, I had lots of problems with my stock OFNA carb, I replaced it with an OS 20E and have never had a problem since. I wish I would have bought it sooner and saved myself all that aggravation, time and fuel. My only other thought about my car is I wish I bought the kit, I think building it myself would have made it even more enjoyable, but I love to tinker..