Thanks to Mr. Chaplin and Mr. Lake for your information.
In answer to Mr. Lake's question, I don't have any objection to the press-ed in fitting; I was merely curious as to why they would use this type of installation and then not at least press the fitting into the pump body prior to sale. It would have made some sense to leave the fitting out if the pump could be used on an engine which didn't require the bypass to be connected. However, if that was the case, then I would have expected Edelbrock to include a press-in plug with the pump. There was a threaded plug included for the heater hose outlet, but none for the bypass. My question was geared to understanding if there were some non-obvious reason that they did what they did, not a criticism of their manufacturing techniques.
Also, as to getting a bracket from Peter, I'm pretty sure the bracket which was on the car was from ERA originally. It's the same as the bracket which is available from FinishLine. As Mr. Chaplin pointed out, the lower boss on the pump has to be machined for that bracket to fit, and in fact the original pump had been so modified. However, in my desire to get the pump changed, I did an admittedly cursory examination of the Edelbrock pump, noting that there were the same number of threaded holes in the same general locations as the original pump. From this, I assumed it was all the same and bolted it on. It wasn't until I got to the point of installing the filter bracket that I realized it didn't fit, and I was sort of looking for an acceptable method of correcting this that didn't involve pulling the pump, expansion tank, etc., off again.
In addition to the above, I noted that the original filter bracket had a slight bend to it, resulting in the bottom of the filter being angled slightly forward of vertical. I don't know if this is the way the bracket was designed or the result of some damage. However, when used with one of the longer style
oil filters, this slight bend resulted in an interference between the filter and the front suspension cross tube during removal and installation, and it made changing of the
oil filter difficult without loosening the remote filter mount from the bracket. Even after installation, the filter sat about 1/16th inch from the suspension crossmember. So I was sort of looking for a way to resolve both problems at once. To that end, I had a buddy make a simple plate of 3/16th inch thick aluminum stock, in the same shape as the current support bracket but without the rear bracing. By installing the bracket vertically in front of the upper boss, and behind the lower one, I was able to move the entire filter assembly rearward about 1/2 inch, which gave me adequate clearance between the long
oil filter and the suspension cross members. This should allow me to remove the filter without having to disconnect the filter mount from the bracket as I have been doing. It seems to work and I was merely wondering if anyone else had a better solution. I appreciate your interest and suggestions.