Thank you...I'll get a picture as soon as I get it back. Gotta love 20 yr old cars. It's in the shop right now having some electrical demons exorcised.

Here it is….

Is there a 1/4" spacer between the booster and firewall?

I can look......this would be on the engine compartment side right on the back of it??

Correct. You're not sure of the origin of the present booster?

No idea.....I've only owned it for about a month.

Gotcha.

I don’t see anything behind it…..

On closer inspection of the pictures.......maybe there is something in there?

Loosen the bolts and pull it toward the engine 1/4". See what happens to your pedal height.