How reliable are snout extensions for the fuel pump?

it's a real roll of the dice. likelihood is that it doesn't as that they were phasing them out by/around 87, and with it being TBI it would need hi pressure feed (i'm assuming).

rollers w/ snouts are rare as rocking horse ****
Correct me if I'm wrong, but the 1985-'89 M-bodies were carbureted with mechanical fuel pumps. With the exception of the AHB (cop) engines, they also all had roller lifters. It would make sense that they'd just use the one LA cam blank, but then again I'm not a large corporation that pisses away money for no discernable reason.

I'm just one man that pisses away money for no discernable reason.