Blowfish ECB mode: Tools for known-plaintext attack?
No, the most you can do is to compare ciphertext blocks for equality and link those blocks with identical plaintext. That ECB is used does not hurt the security of Blowfish by itself. Block ciphers should not be vulnerable to known plaintext attacks, and there seems to be no known attack on Blowfish in this regard.

To state it a bit more formally: that ECB is used or that plaintext is known does not make the cipher itself distinguishable from a random permutation; the repetition of ciphertext blocks only show that it likely is a permutation.

Obviously, brute forcing such a large key is out of the question. That there are attacks on 40 bit keys doesn't translate to keys over 64 bits let alone keys of more than 11 times the size.