Looking back at the posts, I was not the one starting with the attitude. In fact, I started out this thread with a "thanks". So because I am new here and only posted "5" times, that sums up my life experience huh? Whatever.
I never claimed to be an expert, far from it in fact, but I have rebuit a motor or two in my day and my weight figures on this build are pretty accurate. I'm done arguing about it as well. There are other sites that offer professional and constructive criticism and are much more active than this site. So I think I'll take your advice and leave. Your "attitude" along with a couple of others here do a "great" service to this forum. Keep up the good work.
To those of you who gave useful advice I appreciate your responses to my question.
Well, when some here who ALREADY have some of the insight you asked for replied, you wanted to argue. (And I have built MANY engines, and an amuminum headed BBC is WAY more than 75 lbs heavier than an iron smallblock by the way, in fact, an all aluminum BBC is about that much heavier, I Know this to be true, as I scaled it before the install...) That is the reason for the testy response you recieved. I was at the track this past weekend, there were 3 LUVs running, 2 bbc trucks and a sbc truck. The sbc got down track uneventfully, and both the bbc trucks had traction issues. There was a blown 71 Chevelle there that was picking up the front wheels at mid track, so why were the 2 bbc trucks having issues? Weight transfer. Now, as far as going to other, more active sites because you don't like the answers you recieve here, "Don't let the door hit you in the rear on your way out..."
If you think no one cares, try missing a couple of payments...