By hand. Till they looked good.

The bores seem to range from 88.939mm -> 88.989 mm at the top of the cylinder. I don't have the correct kind of telescopic gauge to measure the bores down deeper in the cylinder so I really don't know what percentage of taper they have. I installed the largest pistons into the bores that I had to hone more, and the smallest pistons into the bores that I honed the least. It seemed the most logical thing to do.
Why? Is it bad to hone them that much, or should I have honed them more?
Don't tell me anything bad now....

Tom

Former owner of '99 CSVT - Silver #222/2760 356/334 wHP/TQ at 10psi on pump gas! See My Mods '05 Volvo S40 Turbo 5 AWD with 6spd, Passion Red '06 Mazda5 Touring, 5spd,MTX, Black