Should I go with the a833 conversion?

will this flywheel work? or is the price too good to be true?
https://www.summitracing.com/parts/zzz-50-3409/applications
Ill pm you my number so we can talk about what you have and what you need. I just got done swapping out slant six/3speed to 318/4 speed in my 67 valiant