Re: Front Alignment
Sounds like multiple issues here, not necessarily connected. The braking issue sounds like you need to bleed the brakes as they are not distributing brake force evenly to both sides of the car. When the collapsed hose was replaced and one front hose replaced (not both at the same time?) were the brakes properly bled and tested? Perhaps when the brakes were bled the button on the back of the metering valve (hold off valve) was not depressed and thus the front calipers not bled properly/evenly.
As for "rolling the front end" are you talking about rolling the tops of the fenders for clearance? I'm running 8" wheels in the front with lots of space so it can be done. Some careful measurement may require you change the 8" Corvette wheels (ralleys or some other?) for similar wheels with a different backspace (easy if ralleys, not so much if a different design of Corvette wheel). Not sure what this has to do with the alignment shims unless they are trying to get more negative camber into the car to allow the wheel to clear the top of the fender or wherever the clearance problem is. With stock control arms you will be limited in your caster/camber adjustments by the quantity of shims that can be used while maintaining an acceptable caster/camber, but again, nothing to do with the brake issue IMHO. Is it possible that the alignment tech is not familiar with alignment of older cars? I took my specs in to an old school alignment shop and asked that they be used instead of the specs in the alignment machine's computer, mine were quite a bit different.
'69 Z/28, Lemans Blue/White Stripes, DZ302, Tremec Magnum, 4.10, Procar Elite Seats,
Custom Upholstery, Dynatech headers, 17" VWW V45's, 235/45, 275/40, C5 Front Brakes