Kick down question

I have a 1975 cordoba hit to pass car and I have a kick down linkage question.

In the past I have driven ford and Chevy. On Chevy's everyone removes the kick down linkage. We drive on a 1/4 mile circle track and I manually put the car in first gear and rarely shift into second.

My question is.....I removed the kick down linkage from this car. And I have not driven it on the track yet. If I leave the kick down linkage off, and manually shift between first and second, will the tranny perform right.

Or will I have to pin the kick down lever on the tranny forward or backwards? I changed my carb, so kick down linkage won't work.

All my good cars are 4 spd cars, so I have nothing to look at, or compare.

Thanks.
Phil.
P.s. click the link to see the car
https://mail.google.com/mail/u/0/s/?view=att&th=137875d9badee92f&attid=0.1&disp=attd&safe=1&zw