Engine first start attempt., Couple vacuum leaks, Finally adustable idle. Options

[Olympic 914]

Engine first start, Fail.

Yesterday I made the first attempt at starting the engine since rebuild. I had put two gallons of 93 octane gas into the tank and the pump runs as it should when turning the key. I had a timer ready to perform the 20 minute cam break in.
I was arrogant enough to believe that the engine would simply start when I finally tried it. WRONG.
It caught for a few moments then died. And subsequent attempts gave no better of a response.
I had turned the engine over with the coil disconnected to build up oil pressure before attempting the start. And thought I may have run the battery down some. Checking it showed 12.56v resting and 11.44 while cranking. I connected a big boat battery with jumper cables but still no start. It turns over and fires a couple times giving of puffs of exhaust, but does not catch and keep running.
Pulled a FI hose and checked that I am getting gas, also pulled two plugs and they are wet with gas. I thought I may have flooded it so I put the battery charger on it and put it back in the garage.
This morning I tried it again and the result was the same. It fires a couple times then just cranks.
Everything is new.
Cap and rotor, points condenser plug wires etc. injectors rebuilt buy Witchhunters , static timed when I put in the distributor. All new vacuum hoses, rebuilt MPS (set to 037 specs) ECU is an unknown but it worked when ran last (in ’89) all the wiring was carefully checked when installed
Engine build is as follows.
EA 1.7 engine built into a 2056
Using the djet FI with 2.0 parts, intake runners, throttle body, air cleaner, etc.
HAM heads ported to RS+ and modified for the 2.0 runners
Raby 9590 cam

Guess I will start with rechecking the timing and go from there.