Yeah, the Wallmart (AKA Walbro ) pump is plenty strong. On my car, I use a stock Supra TT MKIV pump. Available at all your Toyota dealers for about $250 (less if you can have garage price). Made in Japan by Denso (better quality than Holley/Walbro) and good for 260lph at 45psi. Also, it kicks ass at high fuel pressure! Good for 500HP.
Also, if you can find a MK3 RX-7 TT pump, there's pretty strong too.
Here's a list of compatible fuel pumps and their flow rates.