My car kinda bogs down. Any ideas?

So I just finished putting my new motor in my car but it still bogs down when i try to accelerate. Any one have any ideas why its doing this?

Timing

I'v checked it though, im wondering if i missed something when i was putting it in.

If it bogs that means its gettin to much gas, check all wiring, and then MAS, most of the time i have found out to be wiring.

im gonna clean the maf and i will double check the wiring and triple check the timing tonight.
and hopefully i can get it running a little better.

What year engine and what year chassis? If you do a s14 kade into a dohc s13 then you gotta use the s13 dohc intake manifold and mafs.

Im pretty sure its the maf now. but for the record. I used an 80k s14 ka out of a 95 automatic. I used the s13 maf but didnt fuck with the intake manifold.

First thing i would do is check for no vacuum leaks. I know mine had a crazy vacuum leak and would cause it to bog down instantly when i pushed the pedal down. Then i would make sure your injectors are fine.