Ron,
Considering the small size of the tubing, I would advise you to run 2 separate blocks, one up front for those 4 cylinders, one at the rear for those 4 cylinders. run the power bakes & vacuum advance from the forward block, run the pcv system from the rearward block. Don't mix the PCV with the vacuum accessories.
I advise this because I would suspect that the PCV system would decrease the vacuum in the block, which would screw up the brake booster & vacuum advance functions.
Plumbing it this way, if you drill & position each block in the middle of the 4 runners, you could plumb it with short straight runs of tubing, no tube bending necessary. Makes it easy!
Am I clear, or do I need to draw it up?
wadda ya think?
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