I was going over my engine, (a stock L28) and I noticed that the vacuum hose for the dstributor was a mess of plastic Tees and old, crumbly hose pieces. The vacuum hose for the Fuel Pressure Regulator (FPR) wasn't much better.

I know that the distributor needs to be connected to a vacuum source from the trottle area, ( i.e., to one of the vacuum ports on the BCDD) but I couldn't find any information to describe where the FPR should be connected. The FPR was connected to a vacuum port on the intake plenum, which didn't have much vacuum on it.

Are there any other available vacuum sources on the trottle section, besides the BCDD? Just putting your finger over the open end of one of the tubes doesn't feel like there's much vacuum there- malfunctioning BCDD?

Is there a diagram, or just some descriptions of the proper (or a better way) to connect the distributor & FPR to the vacuum source?

thxZ

I was also wondering about this. Has anyone come up with an answer to this.