pishta
I know I'm right....
mark the driveshaft at the trans output with a piece of chalk, mark a tire sidewall too. look under the car from about the front tire and have someone roll it forward slowly exactly 1 tire revolution while you count the chalk revolutions of the driveshaft. You should get it pretty close with these, ie. if the driveshaft turns 2 3/4's you got a very common 2.76. 3.23, 3.55 and 3.91 are common in cars, trucks get higher gears than cars. Stock 360 4bbl cams are so close to 340 cams, like the same! I pulled a 360 4bbl out of a truck and it had the 340 spec cam in it stock. They didnt change grinds from the 340 auto cams when they went to the 360, but the 340 being a smaller displacement and smaller stroke motor acted much differently than a 340 with the same cam grind. I had a bone stock 68 340 motor in my '65, even had the 340 logs and that car was quick with its 3.55 7.25 SG rear, Faster than a 340 Duster that lived by me that I would come across about 3 times a month.
