BB valve spring compressor engine in car

There is one or two that stand straight up from the valve stem and about 4 inches tall that work just fine.
I'll see if I can find a pic for you. BRB

Sears.

View attachment 1714977458

I used that one when I changed the stock springs on my 84 cc edlebrock aluminum big block heads to Isky 8005A dual springs. It did the job just fine but my hands hurt for 2 days.lol