if you want logging for stock ecu there is power logger from bob bailey (fullthrottlespeed.com or eric at turbotweak) and you can watch realtime with a laptop...but besides running a laptop to a logger which is nearly impossible to watch realtime at WOT the scanmaster is it..except for a casper led knock meter , you wont find any other dash top type of real time monitor for a 25+yr old obd1 ecu ...
if you want a more advanced ecu ...XFI but be prepared to pony up some $$ but you wont need the Scanmaster 2.1 or powerlogger , but you might want to add a scanmaster 3 for XFI or an edash for Xfi
...if you want a little cheaper ... no vehicle speed / lockup command /egr or additional input ability ...find a used FAST classic (speedpro) , i wouldnt even bother with accel dfi since you will need an old dos laptop to tune with it and it doesn't have wideband or closed loop AF correcting like the fast classic or XFI
for most Erics ( turbotweak) 5.7 chip has more than enough tune ability for WOT , he takes care of the driveability , Eric aslo offers SD chips for more advanced tuning where you have much more control than just WOT