ok so i got the crx about 99% done. for those who done know its a 91 crx si with b18c1 engine running a obd1 p72 ecu. really all she needs is an allignment and an intake tube. so i was driving today, and i was taking a ramp to get from one road to another. half way up the ramp the car starts to stumble. when i get off the ramp the car is running like shit, barely has any power and just dies on me. i try to start it up, and it starts but barely, and its running like shit and doesnt want to hold idle. it runs really rough. i shut it off and start to look around in the engine bay looking for anything out of place or broken or leaking. car isnt leaking a drop of oil/coolant or anything else and there is no CEL. i had just replaced the timing belt, water pump, and crank pulley. spark plugs, wires, coil, cap, rotor are all brand new. one thing to note is that im running with no intake tube. so after i get done checking everything and figeting with the electrical connections i open the throttle body. i see smoke but only a little bt and it goes away almost immediately. smoke was a grey color. after letting it sit for like 20 minutes, i go to start it and it starts back up again a little rough at first but smooths out. i rev it up a little and everything seems fine. i try to limp home, and about a mile down the road the same thing happens. it died on me and would barely start back up. so i called a tow truck and had it towed home. heres some vids of me trying to start it and getting it started. im sorry for the quality and darkness but it was 11:30 pm and i was stranded on the side of the road. vid one vid two *the rattling sound in the second vid is the change in my ashtray rattling* what could this be? blown headgasket? could i have sucked something into the engine due to the lack of an intake tube? i was a clear night and i didnt run over any rocks or dusty patch or anything. keep in mind that this was a sudden thing that happened without warning. car was running perfectly then just stareted to run like shit and died on me. im draining the oil tomorrow to see if theres any coolant in the oil or anything else that could be bad. any and all help is greatly appreciated.