Well, the FPR has a rubber diaphram (I assume), rubber goes bad and dry rots over time. The car is 13 years old. I didn't have any problems with any of the vac lines before supercharging either. But, put some boost on the old, worn out rubber and problems happen.
On the injector question, all I am saying is, I haven't had any fueling issues with the stock fuel system, until recently of course. Could be that the low CFM output of the v-9 has something to do with it.
All that being said, the new FPR DID NOT fix my problem. I'm going to drive home from work running in speed density (not using the MAF) to see if anything changes. If it does, my MAF may be acting up again.
The only other thing I can think of would be a fuel pump problem.
Please, if you have suggestions, let me know.
KC