best gearing for 421 cub ?

[nitrojunkie]

What would be the best gearing for my 421 Cub -full drag port , 35 mm Keihins,+8 swinger , 22X11X8 10 paddle Ultra lights , 200ibs rider for 300ft sand drags.Stock frame.

[fast350]

15/39 sounds like you got the motor for it. I am running a 350, and am running the same gearing.

[wesw]

i would start at 14-41 and go from there.

word of advice the cubs dont like rich needles. or raised up all the way .

anyways.

[Smkmup]

For the 300ft were running 15/46 on my buddys 4 mil cub...22" 12 paddle haulers....

[flotek]

i n sand at 300 feet long id say stock gearing or maybe a 15 up front if it wil l stil l launch hard wit h the 15

[nitrojunkie]

Jim at Passion racing just finished up my 4mm Cub with the new dunable override and I am eager to try this override out but I am for some reason sceptical about the dunable override but I talked to him today and he says ride it like a stock tranny ,downshift when you want and all out clutchless drag when you want he said dont hold back or be afraid to down shift whenever you need to. And does anyone have any suggestions about where I should start for the jetting on my
35mm Keihins and does anyone have any marvin shaw coil overs for sell or just some nice polished springs???

[terboed]

start with stock (14/41) and maybe toss a 15 tooth up front. fast350, what kinda tires are you running? you must be getting alot of wheelspin, 15/39 is way too tall for any 350 in my eyes. with my 350 i kinda want to drop a tooth up front. 22's have alot more rollout.

[flotek]

be sure ot run +7 ignition timing and for drags id be looking at dual 38 or 39 pwks to replace thsoe baby 35mm ones , cubs love big carbs and ignorant ignition advancement

[nitrojunkie]

This shit is getting to expensive,now my carbs arent big enough...Damn ...Anyway where should I start off with the jetting at sea level?Thanks !

[fast350]

terboed, i'm runnin 22 inch extremes, their 9 paddles. I change my gearing alot, that is just what i am runnin now