hard start

[xlMcMlx DsM]

My car, ever since I got it, has been hard to start when cold and warm. It cranks slow, and kinda just stubbles over. But it will start everytime. I have changed the following with new parts:
ECU is brand spankin new
MAF is new
battery is basically new
Alternator is new
new NGK plugs and wires
new coolant temp sensor
NO BOOST LEAKS
timing is dead on 8* BTDC
Cam marks line up perfectly with #1 piston at TDC

The only things I think it could be are a bad coil, bad battery or starter ground, or bad piston rings.(reaaaaaallly hope that's not the case) I will be doing a compression test on Wednesday, but I just wanted to see what you guys think.

 

[->PrOjEcTGS<-]

I would check all of your battery connections. All of your grounds and electrical connections.