1/2 mile racing

[Budnicks]

3.23:1 at roughly 6000rpm is 146mph with a 295/50/15 less than 27" tall tire
I'd think that the 2.96:1 would get you to 155
if your combo is at all decent, doesn't bog in low or hi-gear...

low car, low center of gravity & lower drag,
block off any air from going around the radiator under the hood etc.
maybe tape off the grill, keep out as air that goes under the car as much as possible

they aren't very aerodynamic any ground effects would be helpful
big wide oil pan acts like a belly pan sort of too, airdam/spoiler on the front
maybe a deflector on the rear may help some too...

I had a 68 Charger R/T with a 446ci that'd run 150 {159 with a radar @ 6500rpm}
with 3.23:1 {prob. 3:55 gears} gears easily in a 1/2 mile straight flat stretch, it wasn't force fed either...
Never did it as an organized event thou, just a bunch of guys going out &
marking it off & going for it...

Good luck & have fun

Correction I believe it was 3.55:1 gears not 3.23:1
going off memory, sorry...
Just a well built 440 cam, intake, carb, heads, headers, balanced, etc.
nothing special really, not like any of the racecar build I've done,
I was impressed really, it did as well as it did...
Stock the 68 Charger R/T would top out at like 136 after miles of running
with my foot buried on the floor...

to someone's comment about pegging a speedo to the 150 mark
by the way a 68 RR gauge cluster has a 120mph speedo not a 150,
that was in the GTX's not in any RR's in that year...

anyway just a little clarification