fuel injector size

I have a 1992 mustang lx. It has a 331 stroker motor with edelbrock performer heads that have been cnc machined. It has a cobra intake(getting ready to switch to a edelbrock). cold air intake. 1 5/8 shorty headers. crane roller rockers. I am not really sure what kind of cam (supposed to be 550 lift). but it still has the factory 19lbs injectors. I was thinking about going with 30lbs with a calibrated Maf sensor and longtube tube headers. would this injector size be about right? i plan on having the car dyno tuned if i could ever find a dyno shop close to west virginia, any  suggestions? thanks

Brian  

The 19s in the car are probably close to being maxed out, but you won't truly know until you have the car dyno-tuned, and data-logged throughout a run. Your ideas about adding 30s is not a bad one, especially if you plan on adding more power. However, if you add a blower at some point, you'll need larger injectors anyway. Why buy twice? Get the car tuned now, and see where you are at with the 19s. I would be willing to bet the 19s are ok, and larger injectors aren't necessary at this time. However, like I said, a tuner will be able to see where your injector duty cycle is at, and adjustments or larger injectors can be decided on at that time. I don't know of any dyno shops in WV so a road trip may be in order. Good luck.  
Michael Johnson
Associate Editor
5.0 Mustang and Super Fords

I am looking to put in 52lbs injectors on my 5.0L 91 but not sure if they will fit.. They are from shelby mustang, anyone now if it will work?