Purestock240

I bought another 240, its a clean shell, hatchback with a red top in it. when i was picking it up the guy told me it needs a new MAF and thats why it is running poor. I unplugged the MAF and it made a difference. so im assuming the MAF is good? it will rev up but is barely driveable as it bogs under and decent load. I've been around 240s for years but never had an SR so im pretty new to them. heres a video of how it runs, sorry for the stupid tall video and shitty sound but you can kind of see and hear whats going on.

so any ideas on what to do?

SR20det red top running rough - YouTube