how to I go about wiring in my aftermarket tach in a f22a1 1991 Honda accord? I done away with my complete old cluster...

 

Tap into the tach signal wire from the dist

 

Yeop.

Any decent Tach will have instructions relating to what brand needs what parts to convert the signal if need be.
With our generation of Hondas there are a few areas to tap into the signal, it is no different than any other conventional system.