I was looking on either summit or jeg's website last night, and it had a listing for the #1910 (850cfm performer q-jet), but it said not available..and listed some other recommendations that were supposed to be close to it I guess? they had all the other edelbrock q-jets, as far as I know. I just took it to mean that they were currently out of stock, but...maybe they just stopped making this particular model? I hope not, that's what I was planning on running when I swap in the 454. but anyway, I'm pretty sure they haven't stopped making q-jets altogether.