Lift Brackets

[camarocards]

Searched and searched but couldn’t find the answers to my questions...

I’m going to install the lift brackets on my ‘68 Camaro BB L35 engine and have a few questions:

1. Are the bolts longer on the intake manifold to compensate for the added thickness of the lift bracket? If so, what is the length? Also, are they shouldered/non-shouldered and does anyone sell them (AMK?).

2. What type of bolt is used to attach the rear lift bracket to the cylinder head? Size?, shouldered/non-shouldered?, bolt+lockwasher or just a bolt?

Thanks,

Bob