First concern and most important. I did a quick crude measurement and I am not certain my big block will clear the large whatever that is attached to the master cylinder. Can anyone a) tell me what that is for sure and b) if you've had grief from it while swapping in a BBC. Question is WTH is that ball at the top right of the picture? It's right behind the jack holder and is attached to whatever the heck that thing is that has the yellow jacket nest on it that sits directly above the back of the motor. This is from a 88 K5 that engine wise was bone stock with TBI and all the emissions crap. Thanks all.