I had a t-45 borg in it, runnin around 2700 at 100kph

 

seems high IMO

where were you revving at 120?

 

you guys both running stock size rims and rubber?

 

yup and yup around 120 i think it was like 3300, this was like almost two years since i had the car with 4.10's so thats what i remember.

 

whats a good brand for gears..?

 

Ford Motorsport I believe is the most popular

 

i had ford racing, never had a problem, well except for the entire rear end giving out, but that wasn't the gears fault, just the installers.

 

Wow guys...

25.70 inch tall tire
4.10 rear end
0.67 5th gear
100km/h = 2200-2300RPM (not exact because it depends on tire wear)
120km/h = 2600-2700RPM

On a NPI 4.6, I'd go with 3.73's personally....

 

way too high....see G-forces post

 

I have 4.10's, and my rev's are similar to 2000BLKGT's (hey when you going to change your name on here too? ).

Personally, I can't imaging having 4.10's with a blower. 1st gear runs out quick when you launch.... when I went to the track the first time with them, my times were worse then with the stock 3.55's because I couldn't get used to them. With a blower, , I'd have to start off in second gear lol