Doug,
Don't know if you still need the info on clearance for the hydraboost and ITBs.
If you do, I can measure a hydraboost setup and the distance from the factory mounting of the master cyl to a inline. I have a 94 truck with hydraboost and a 67 with a inline.
A visit to hybridz.com might help you on your ITB questions, they have discussed that in depth in the past.
Lee
