Petty, I dont know how much you do yourself, but I know some fellows who have spoent years trying to debug something they know very little about. If you're 23, there's a lot of things the factory manuals dont tell you. Also, all the guys buying NOS electronics and carbs and scuh....I worked at an old local dealer, and helped do the update and re-fit of the parts department. Not every NOS part was left around because it was perfect. I had several parts that came out of NOS boxes, but were NOS defectives that were never returned. Now those pcs would be worth hundreds, because you cant tell until one installs them, and the parts guys who bought the old inventory certainly aint gonna test them like I did. Usually it's electrical parts, but I did find a defective Thermoquad in a pile at one point. I've aldo seen NOS body parts that were twisted or very difficult to make usable. Anyway, my point is, "new" doesnt mean "good", and NOS doesnt mean "good" either. Everyone has thier limit to experience and subject knowledge. Perhaps you have reached yours? Maybe it's time to pay a pro, unless you've also reached the patience limit...lol. As far as your bog, if 2 engines did it, it's one of the parts you put on both engines, or the person setting them up. Electrical generally causes poor running, but not bogs without other side effects. It's either cam timing, ignition timing, igition parts, or carb, or a combination of them. Keep after it. Keep asking questions. Otherwise you'll make someone a killer deal on a car you dont need to sell.