Do I absolutely need bigger injectors??

[Blaster]

I will start putting my engine back together next week and I went way over budget putting my new 331 together. I have a 70mm t-body, ported 6037 edelbrocks and typhoon intake (ported lower), and 1 5/8 shortys. Can I get away with using my stock injectors for this coming season with a 255lph fuel pump and a adjustable regulator. I don't have any money left for a new mass air meter and 24 injectors. Should I risk running my engine lean or can I run this way until I save up for the injectors and meter (probably used to save $$$). I need a solution because my visa is on the verge of melting from over use.