It is amazing to me that this site is dedicated to Allante owners and there are literally hundreds of owners on this site having a variety of Allantes and not a one of you know if there is a tool for the manual top .
Earl, You and I are emailing on this subject but You claim to have a phase 2 car so you have power front latches on the convertible top. All the hardtops no matter what year are manual. If you have a real phase 2 or 3 top they came with a special tool to turn the latches down. I want to say its a square end so you just need to find a socket that fits and use a ratchet.
The phase 2 cars '90.5 - '92, had electric motors to hold the front header, for the soft top. The Phase 1 cars had manual levers for the soft and hard tops. Now the Phase 2 hard tops have the manual "T" handle that inserts into the lock mechanism. This tool has a handle and a recess on the other end. This recess is about a 1/4" but it is not a parallelogram. Two opposite, which would actually be top and bottom, sides actually taper, so the handle, because of the tight location, will only fit one way.