[GretchenGotGrowl]

Obviously more air requires more fuel, and stock fuel systems have a limit. So last night I thought I'd see if the gusy boosting their SS Camaros w were having the same problem. It turns out the L99 are. They can't seem to get the ECU to make much of awith the fuel control module. At most they can get about 1 volt increase and no change in the pulse width. If that holds true with our cars, I think we have to bet a voltage regulator or an secondary pump. What do you guys think? Should I go ahead an buy one? Which would you buy and why? I personally don't like the potentiometer route because that's more wiring, adjustments, etc.., but I don't know if there are good options for an aux. pump for this car. MSD does make a nice kit to boost the voltage but it won't work on returnless systems. I can't find out if our fuel system is returnless or not.

Just thought I'd get a discussion going since it looks like several of us are running into this problem.