Modded 90 LX vs 98 GT?

[95GTS]

With 4.10s he could easily see 120 and VERY quickly at that. He could hit 105 in 4th gear man. Say he drops in a set of 4.10s he'll be crossing the 1/4 line in 4th and in the mid 90's (say round 94mph). If he keeps on going and get's in 5th there's not much problem reaching the 120mph mark but that's probably about all that'll be gotten untill he upgrades to more power. But on stock hp he'll see that quite easily.

As far as shifting with the 4.10s if he uses 1st, which you pretty much won't need to except for racing, then yeah he'll shift alot. Otherwise it'll be like driving a 4 speed around town when starting out in 2nd. 2nd will roughly be around how his first gear operated with the stock 2.73s. 3.73s or 4.10s are very good gears for the 4.6. Like I mentioned in an earlier post the power band of the 4.6 is way up there in the rpms so they need some gearing to get the motor wound up there to get the power. My personal recommendation is 3.73s unless you frequent the strip alot then go with the 4.10s. If you plan on a blower in the future actually the 3.73s would be the better gear to get a bit better top end mph because the blower makes up for the low end torque. When I jumped from my stock 2.73s to my 3.73s my ET dropped .4 from a 15.4 to 15.0 but my mph also dropped, instead of increased, from 94 to 92 mph. It won't make much difference really.