This is my first post ever on any forums.. I'm honestly stumped with this car though and can't seem to pull any answers off posts from years ago so here it goes. I took my 1980 rabbit with a 1.5 cis and turbo'd it this winter with a Garret t3/t4 out of a Volvo 240. I rebuilt the turbo, spins beautifully. Kept the factory wastegate (seems to be working well). (I've also wired the wastegate shut to see if it was my problem and it didn't boost anymore than before). Max I get for boost is like 4 pounds. Also doesn't start to build boost until like 3500 rpms, then its cutting out and popping at 5. Now to add to my problems I can't figure out where I should be setting my timing or where I should be setting my air/fuel ratio adjustment on the fuel dizzy plate( I've adjusted both everywhere). It seems like the more retard my timing is boost builds quicker but the car is sluggish and when I advance it I can only get one bar at like 4 grand and still runs out of fuel or something around 5 grand. This car ran beautiful and would rev out to 6+ no problem before I put a snail on it 🙄. I also don't know if the wur check valve is facing the right direction or if it is even needed on a boosted setup. Or if my vaccum in general is setup correctly, like my pot on the distributor where I left the back open but ran vaccum on the front. I drew up a diagram for my vaccum lines but I can't seem to tag it with this post. I'll try again later. Any pointers or help would be appreciated. I can take photos of anything that would help. Thanks