TRY this site !!!!

http://www.smokemup.com/ ... go to auto math

perfect for calculating ALL kinds of important ratios like :: sizing tires, rear end swaps, transmission types input, highway speeds and RPM's .....
airflow engine, building and tons more

Jim & Caroline
The highway is for gamblers, better use your good sense."
Gooday-that's my 1¢ answer due to the lousy economy ~ cause I ain't got - no . mo . doe
Every Shaver | Now Can Snore | Six More Minutes | Than Before ... | Half A Pound for Half a Dollar | Spread On Thin | Above the Collar || BURMA-SHAVE