[shsouthard]

sorry been busy I would like to have a car that's not looking for another gear on the highway as that is were it spends most of its time about 65 miles a day to work and back. it has true duals with no cats headers will follow shortly. I would like to get in the range of 17-19 mpg on the highway. Now to get a few more HP which brings me to the L-31 heads but along with the raise in compression comes a different cam and there goes the 17-19 mpg. So the question now is what to do.

[butchcoat]

first of all you must decide what you want gpm or power? i'v replied to so many emails it's hard to keep up with who is running what! i need to know which car i'm talking about and the perticulars of your car, engine, tranny, gears, tire size etc, etc, if you want just email me at butchcoat@sbcglobal.net with your spec's and i'll try and help you as much as i can, thanks BUTCH

[techinspector1]

Originally Posted by ap72

Ok, I think I see what your looking at, some people refer to numerically lower gears as taller and higher gears as shorter. (God knows why )

a bigger cam requires a numerically larger, taller, steeper, or whatever else you may wish to call it gear.

Why? Because that's the way it has been for 100 years. A 2.80 is a tall gear. A 4.56 is a short gear.

[butchcoat]

i think there has been a mistake made here? i'm not the one that said anything about tall or short gears, that was someother guy that repleid to something that had nothing to do with what i said, so your responding to something i didn't even say. i know gear ratios and can only tell you from my experince and others who i know, as to what helped them. like who would of thought that a 69 mustang would have a lug bolt pattern of 4.25 and not a 4.5 and it's a 9" rearend where my 66 stang is an 8" with the 4.5, but its true and whats even stranger is it has a set of origenal "GT" rims on it, so my point is when it comes to cars anthing can happen, and everyone has a diff way of doing things. example: what would happen if you would put a realy short low profile tire on? that would change your rpm range as say a taller tire which would slow things down a bit, thats why it's important to decide what you want. i don't remember comenting on your gears and thats why i left you my email address, so we can talk without interferance from someone else putting the 2 cents in, so if you want me to help then i need to know what you are talking about, sorry for the confusion, butch