I thing I found carpet to match oem Options

[PanelBilly]

https://www.upholsterysupplyusa.com/product...ver-knit-carpet

Is this the right stuff?

[wonkipop]

@PanelBilly i think that carpet you are looking at is the carpet that went into 911s at that time.

its a kind of fuzzy look carpet. but not perlon.

914s used VW carpet stock.
most of the higher spec cars had loop pile.
but.........when it comes to 74 914s they changed the black carpet from the loop pile stock they had been using (used in VW 412) to a different type of carpet as was fitted to the VW scirocco.

@scallyk9 this is going to matter for a bumble bee.

@JeffBowlsby has a handle on when this change in the carpet occurred.
its either at the start of when the LEs were coming down the production line or during their production run. so some might have been the earlier carpet and some the later.

i have a sense of when the carpet changes from 74 L jet data. but not as narrowed down as mr. b has pinned it. its between end of feb74 and somewhere in april 74 the changeover happens.

the latter carpet is called salt and pepper. i would call it mottled.
i have seen that carpet or something very close to it on mercedes benz carpet suppliers.

you need a sample if you are wanting to be serious about getting a bumble bee right.
depends on what you are trying to do and how far you want to go.