I am considering building a 2.1 long block with some minor performance
enhancements such as ratio rockers, lightweight valve train and
ceramic-coated heads and pistons, aircraft-grade head bolts and some other
anti-leakage measures.  I would install this 2.1 in place of my 1.9 since I
am just over 150K on an untouched motor.

The question:  How much can my stock 1.9 fuel injection handle?  What
improvements can I make before I need to replace/upgrade my FI system?  Am I
looking at larger injectors and or just a fuel pressure regulator?

Any wisdom is appreciated.

Thanks,

Chris.