Who is using larger (than LS6 injectors) injectors on their cammed, or heads/cam, naturally aspirated 346 cubic inch LS1/6?

What is the nominal, approximate limit of the stock type 28 lb injector (Relative HP, RPM, Duty Cycle, and Fuel Pressure LIMITS, if known)?

What is the logical progression? 30 lbs (is it worth it)? 36 lbs (Fast 90 w/big cam and high RPMs)? 40 or 42 lbs (Heavily ported heads w/huge cam or solid roller)? Again, just talking N/A 5.7 (or non-stroked 6.0).

Are there tuning/programming issues with street cars? Is the C5/Z06 fuel system adequate?

I am just completing my TSP cam swap (233/239, TSP LTs, SLP pulley, Honker CAI, ported TB and MAF, etc.) and I was curious about injectors BEFORE I have my '01 Z06 dyno-tuned for this combo.
I have heard that the stock injectors are useable for much higher HP combos, BUT is it recommended, or is it beneficial to consider a slightly larger injector to better suit the mods?

I am aware that there are varying opinions (and results) that often go against others. I understand there are scientific approaches to selecting injector size, and there are more basic "rule of thumb" formulas that have been successful. Obviously 'overkill' is not the objective, but is the stock size injector still a good choice when adding 75-100 HP to our C5 (much of this additional power coming from mods that involve moving MORE AIR into the engine)?

Has anybody 'played' with injector sizing and seen improvements without any additional 'new problems' caused by the larger injectors?

 

tons of info on the internet. Start with this link and it will tell you everything you ask.

http://www.rceng.com/technical.htm

 

 

Last time I dynoed the car, I was told that the injectors were at 100% duty up around 6,200 RPM. I am now getting ready to install a Tony Mamo special FAST 90 setup, and since I will need to be tuned again, I am installing the 30# SVO Ford Racing injectors. At four bar where are systems run, they put out about 36# rather than the 30# and according to the RC Engineering web site I should be around 80% duty cycle or thereabouts. I am hoping this will also make it easier for my tuner to work with the car when he sets it back up again.

On my C4, I bought a new set of injectors from RC Engineering and it not only idled smoother, it solved the notorious L98 hot start problem.