I added 4 more injectors from a Ford Escort, I think they
were 14 PPH, those added with the stock TBI injector
makes a flow of 25.5-26 PPH, which was not quite enough
fuel at 8 PSI boost at 6000 RPM, the engine ran like a raped
ape, but the mixture meter showed a little lean and I had
the injector cycle set to 100% at that point.
In my opinion a set of 27s would be the smallest, and probably
should be increased to 30s just to run them at lower than 100%
duty cycle. I later added a set of brown top 36 PPH
Ford injectors from a turbo T-bird, actually from an XR4T-i but
the same engine, those with the TBI actually way over fueled
the engine, making it hard to tune, they were low-Z injectors
If you get any injectors it is best to be of the high-Z flavor, so as
to not draw too much power through the FETs in the injection
computer.
Food for thought
Wild