1600cc Dual Port Type I Engine Questions - Help Please

1600cc Dual Port Type I Engine Questions - Help Please

Hi!
Today I went to check the oil level of my '73 beetle.

While doing that I noticed the clamps on the intake manifold boot on
the left (3,4) side had come a little loose and the boot had slid over
exposing the left intake manifold and the center section gap.

This probably had caused a lean air/fuel mixture on the left side.

I had only made a few short 5 mile or so trips with the boot in the
slid over position.

After repositioning the boot and tightening the clamps, I took it for a
test drive.
It performed really well and ran smoothly and did not over heat.

I could not tell that anything is wrong with it.

I plan to do a compression test and probably will eventually replace
the intake manifold boots so I can inspect the DP port on the left
(3,4,) side for any cracks.

How bad do you think this might have been for my 1600cc DP Type 1
engine?

How bad is it when there is a crack in the DP intake port of the
cylinder head?
Thanks In Advance!
Sleepy Joe