Rebuild started fine, ran for 30 mins, now it wont start!
 

I've built a few engines and have had them flood on me, but nothing like this.
I put a half bridge 13brew in my FD that I built and it started on the first try, ran great actually. I was going over the usual checks and letting it idle with the occasional dickin' around with brapping the throttle. I even took it around the block.

I shut it down and started it several times that day, getting it up to operating temp every time. It never got bone cold between starts.

The next day I went to start it up and it didn't even try to start. I let it roll out of the garage and I gave it a pop from the clutch followed by some cranking, it burped and rattled for a second and died. I then had my wife push me down the street, hah, and it fluttered and tried to start but it never caught.

So I did the old fashioned way I've been accustomed to: pulling the leading plugs, cranking and cranking with the EGI fuse out till she puffed no more, put MMO in the plug holes and put a different set of plugs in and tried to start. NOTHING! I did this several times already and have grown upset and frustrated. This trick always worked like a champ for me.

I'm thinking about bringing a friend over with more muscle than my wife so we can get it rolling really good and try a good pop start in 2nd gear. It seems the only time it tried to start was when I got it rolling.

I'm afraid of a pull start method since I've heard of people spinning a bearing, so it would be nice to avoid that, not to mention I think I would need to pull my bumper for that crap.

Anything I could be missing?

push start failed. Ran that thing as fast as my friend's and my feet could move, nothing. We tried 4 times before giving up, tired, and sad.

It is a new motor, they will give you hell sometimes.

I would check these first

Fuel Pressure
Fuel Injectors
Spark to L and T
Compression, Just Check

then

PULL START IT

How would pull starting it cause a bearing failure? The oil pump is running. If you mean a trans bearing failure then yes if it was a Automatic

if you dump the clutch while rolling at a good speed you will most likely bring the rpms up high before oil has had a chance to get to the bearings. I know of one person who grabbed a bearing, but hes rebuilt and raced so many engines that one is bound to fail.

I've got all of the above listed except I haven't done a comp test. Not really worried about it since it did run. I think im going to get some 50 weight in there and start it with some ether. Hopefully I'll have an answer this evening.

OK I got it started again.
I didn't even pull the plugs.

I cranked it with the fuel pump disconnected
Poured straight 40 weight in the intake manifold
Sloshed it around a few turns
Shot some starter fluid in the manifold
Plugged the pump back in

Fired up no problem.

BUT OH GOD THE SMOKE! It is acting like a shot oil control ring it smokes so bad. I drove it out of the neighborhood and parked off the side of the road and let it run for about 5 mins with no signs of it letting up. Some lonely old lady pulled off the side of the road to see if I was ok and we talked about the housing market while my car blasted smoke everywhere.

I really hope this is just all the oil in the intake and exhaust that I've been dumping in burning off because it would suck for an oil control ring to shit itself even though it ran smokeless the other day.

I let it sit for 30 mins or so and fired her up again. The smoke continues for about a minute then vanished. Either the manifold was so coated in oil that when I let it sit all the oil ran into the engine OR an oil control seal or ring was still seating and it needed a heat cycle which I've never heard of.

Drove it around a while, got gas, got the idle down under 1400 so it seems to be getting better compression as I was only able to get the idle at 1900 when I first started it.

I feel you

Im trying to start a half bridge 12a

Ive pull started my FD several times. I just leave it in first and have someone pull it with my blazer. It works every time.

That's normal, the motors compression should improve in it's break in period a little.