Lost a cylinder, Car is missing bad Options

[catsltd]

Been working steadly on fixing my 1974 1.8L.
New injectors,plugs,Petronic point replacemnt.etc.

Driving to the store when all of a sudden something happened.
Car felt like it had dropped 1 of the cylinders.

Car does not rev at all,made it home and parked it.

Diid a compression test (cold),110 110 100 90.

Not happy with 90 on cylinder 1 but felt at least like motor should still be running.

Where do I go next.????

I have a dual vacuum line throttle body,and a single vacum on my for sure non stock distributor that had a 4500 RPm rev limiter.

(Distribitor mark for cylinder 1 is 180 degrees out.)

Like I said I put on a pertronic 1847 and a petronic blaster coil and 8MM wires.

I am thinking its a spark think,but really dont know what to do at this point.

I have ordered a Mallory Unilite distribitor(4554101),but wont install it till I figure this out.


Hoping for some help from you guys.
Thanks Grant.

[snakemain]

I had something similar happen on mine years and years ago. Dropped the engine and took a bunch of stuff apart, changed some stuff, and put it all back together and it ran fine. Still wonder to this day if I had a badly loose spark plug/plug wire and just missed it when troubleshooting.