the big 3 is this the right way?

I could use a little clarification on this topic as well. The alt. positive to battery positive and battery negative to chassis are straightforward. However, I like the original poster, am not completely clear on the engine to chassis ground. I understand that it is best to just upgrade the engine ground strap, but I'm not sure where this is located on my vehicle. Furthermore, if, as DYohn posted in the original sticky on how to do the big three upgrade, the alternator case is the absolute ground, then wouldn't it be just as good to ground the alternator case to the chassis rather than hassling with finding the ground strap? Lastly, if it is just as good to ground directly from the alternator case, then should this ground necessarily run to the same point on the chassis that the negative battery terminal is connected to?

I grounded my alternator case to the battery negative, then grounded the battery to the body. I still have to ground the battery to the frame though. You don't have to find the factory ground strap from the battery to the block. Just find a non-essential bolt that has a low resistance