does anyone make custom maps for people based on what mods they have done? or is this generally not a good idea?

 

Getting maps over the net is really not a good idea. You can try using well known and proven timing maps (Chuck's for example) but as for fuel tuning, it would be best / advised to use a wideband and tune that yourself.

Or you can try to find an RX-7 tuner in your local or surrounding area.

If you still want a map off the net, there are several people who can help you. Jason from RX-7 store sells them, and so does a member named Jodeny.