Lude Generation

I recently converted auto to manual transmission, Honda Prelude BB8.

Manual gearbox (5 speed) is from 1990 Honda Accord.

It is 5 speed auto trans, tiptronic with LSD before converted.

Now car runs slower comparing when it was auto.

It used to be faster than Lancer Mivec, Honda B18, B20, all manual gearbox.

What can be wrong?

Some people said I selected wrong gearbox for this conversion.

FYI engine internal (H22A) is stock with head porting, intake, header, bigger throttle, custom camshaft, exhaust modification.

What was the code from the 90s accord gearbox?

high revving motors need short ratio gearboxes - if you took it from an accord that only revs to 6k then the gears will be too long, and it will be slow...

Yep, what is the gearbox code? (4 digit code on a sticker with a barcode, on the front of the gearbox - Mxxx )