so when i go to get my head turned, what dimensions do i use? i know it's 44mm in diameter, but how deep do i have it cut? 0.020 inches like the factory step is? at least i know it's 0.020 inches deep on the 85..... but i have an 87'. any difference there?
i'm looking for a compression ratio between 8.5:1 and 9.5:1. 8:1 is my minimum, and 10:1 is max.
sorry if i'm bombarding you with math, i just want an estimate though.
thanks!
![Mr. Green :mrgreen:](./images/smilies/icon_mrgreen.gif)