How bad did I eff up?

It's a good thing yall said to do this.
I did a crap job on the intake.
I found a piece of old gasket in the valley.
No idea how it got there since I used a shop vac to clean it before dropping the intake back on.
Embarrassing.
Anyway.
Here's some more info.
I pulled two of the bolts. One of my concerns was the length and bottoming out. Seems the ARP are actually shorter by a thread or two even without the washer.
And I see no mating shoulder under the head for the washer bevel.
Do yall still think I need to put washer under them?
I've got them good and tight now.
I'll check the short ones too.
But I bet its the same on the length.
In the mean time I'm getting the engine hoist back out.