My local amp is fs?
They do he and bj, not sure if they do  
Fs, should I just ask or how else  
Can I find out

Unless the place is reviewed on here, it is doubtful you'll find out.

I've been to many an AMP, and I'd say that I managed FS at about 1/3 of the places.

Sometimes you have to go back to a place a few times before they know you well enough to extend that courtesy to you

And even as a repeat customer if you are cheap they will not offer.

My batting average for FS in AMPS is well over 90%, and that covers at least a dozen different state and some 30+ years of going to AMPs

Note to self, stay the fuck out of New England lol

their rules are their rules...   but there's really no way to find out in advance.  A HE is pretty much assured.  Often a gal will make an offer & somehow let you know a price.  If she asks what you want, say everything.  
Sometimes they won't tell you a price but expect a tip...  I hate that because then the pressure is on you to come up with an acceptable amount.  Don't want to over pay but too low & she'll not be anxious to entertain you again.

On the flip she usually massages a lil then motions to the groin area an makes the HJ motion. I just ask if more is available. Never been turned down.