Clyde, first thanks for the question to aid me in fixing the problem. The regulator that i am referring to is the regulator on fuel rail. That is the regulator that i was referring to that i replaced or bought new while doing the engine swap. Lastly, will either of the two pumps you just mention fit in factory EFI sending unit from a 1990's model suburban gas tank/sending unit?
BR3W and LS1 Nova, truth is the MAF is placed not more than 4 to 5 inches from the throttle body, directly in front of it. My friend, whom I did the swap for, hasn't bit the bullet to buy a kit with proper elbow, etc.. to properly located the MAF. So, from your comment, I see this could be a real big problem.
Thanks!!!!!!!!