dsms4ever

I recently acquired a 96 2wd 2.4L tacoma that's been modified to house a SAS front end so now it's 4wd and it also has the 3.4L V6 in it. The Gauges all work and appear and it runs great, no hesitation or knocking when under throttle. I would naturally assume the 2.4L pump is smaller than the 3.4L V6 pump. I also know it doesn't have a filter in line from the tank up. It seems like it will take a few cranks to turn the engine over to run and then it smells really gassy some times for a few seconds. Other times it fires immediately. I'm wondering if this has something to do with fuel pressure.

If I got a V6 pump out of a wrecking yard and the fuel line from the tank to the engine or rail would everything bolt up or is the tank completely different and fittings and stuff?

Thanks for the help.