My '70 'Cuda went 11.20's at LACR on pump,had a 440,10.5 compression,.055 over,Indy SR heads ported,Indy single plane intake,950HP carb,a Indy spec .601/.608 solid flat tappet cam,8" convertor,but was pretty tight,{slow 60ft showed it},4.56 gears,28" Mickeys,full length exhaust with 'Cuda tips,3" Flowmaster 30series muffs,track is about 3500ft elevation,Bakersfield{closer to sea level} is good for at least tenths on most cars.My car is 3780 with me in it,I dropped exhaust out of car once and went 11.08 at LACR.

I must say I have always liked the .590 cam. I had a cam speced for my eng and its close to the .590 specs as my lift is .588 and .592 but I use 1.6 rockers to make it .628 and .632. I have seen some good running combo's with the .590. Ron

Thanks guys. I may still try the stock stroke. I assume 6500+ rpm combination? If so are oiling mods necessary to the 440? I do plan to run a deep pan and high volume pump.

My old combination in my Challenger ran for a lot of seasons with just a Milodon pan and hv pump,3/8 pickup.
440, stock forged crank home ported 915 heads,590 cam flat top Pro Tru pistons,10 to 1.
Pump gas,10.90 in the heat @ 3325 lbs.
J converter 4.56 gear,32" tire.
Keith

Forgot to mention my friends that run that combo shift at 6000 or 6200! Single plane, old style 850 4781, 2 1/8 Supercomp hookers.

I haven't run a bunch of different BB combos, so this is from a keyboard commando!
All things being equal, I'd prefer running more cubes at lower RPM than small (stock) cubes at a higher RPM.
Air and fuel volume will be equal, so you will need a good upper end either way.
Converter will be required either way, and more torque will be nicer on the street than a peaky high HP/RPM motor that is soft down low.

Yeah, it can done:

A. Original combination that went 10.9s - 11.0s (6.9s - 7.0s) on pump gas @ 3700#s w/ driver:
- Ported OEM iron heads 270/210 cfm
- 9.8 CR
- 254/254 @ .050" solid flat-tappet cam
- Ported M1 intake w/ 80496-1 Holley "950" 1.375" v x 1.75" throttle
- 1-7/8" Hooker headers
- 9.5" 4200-stall Dynamic converter
- 4.10s
- 9" slicks

B. Next combination that went 10.5s (6.6s) on pump gas @ 3750#s w/ driver was same as above, except changed to:
- Ported MP Stage heads 305/235 cfm
- 10.8 CR
- 266/266 @ .050" solid flat-tappet cam
- Ported M1 intake w/ BG "Gold Claw" 1.425" v x 1.75" throttle
- 2" TTI headers
- 275/60R15 M/T ET Street Radials

Just be aware that my results came after a lot of tuning at the track to get the car dialed in, especially w/ the suspension so the car would 60-ft. reasonably well on small-ish tires. But in both cases these were running in full street trim (other than when I swapped to 9" slicks) on 93-octane pump fuel after driving the car to the track.

It can be done maybe a little more gear but tuned right should be ok

I prefer the ultradyne 309* 613" over the 590 cam. Had great luck with it.. I heard bullet sells these grinds now..

I always thought a .590 or similar cam would be overcammed for a 10.5 to 1 motor, but looks like people still had great success. I would love to get closer to 11.5 to 1, but i think id have to mill the heads quite a bit, and nobody sells a lightweight piston with a small dome. I may have to try one of these big solids, especially since I already have some isky ductile rockers. Fwiw I am also running a 950 holley and 1 7/8 headers for now.

I was going to run the .590 but since I run 10.6 comp I called Dwayne Porter and had him spec a cam for my combo. It is actually close to the .590 but the valve timing plays an important part of it with cylinder pressure as the intake valve closing has alot to do with how much cylinder pressure it builds. And cylinder pressure has alot to do with running on pump gas. I feel I know alot about cams but I dont know what Dwayne Porter knows as he is very good and it seems every car I have seen with one of his cams runs better then I thought it should so thats one of the reasons I went with his cam. He is a pro and does this every day. His prices are very good and I wanted a custom cam speced for my combo. If you would decide to have a custom ground cam and wanted to talk with Dwayne just let me know as I have his phone #. Just an option you might consider to get the most out of your combo. There are many smart people on here but guys like Dwayne do it for a living every day and are pro's at specing a cam to a combo. Also if you do go with a solid flat tappet which I did have it nitrided as Dwanye suggested and did that to mine and also told me to run the EDM lifters which have a tiny hole on the lifter face that puts oil right on the cam lobe. Nothing wrong with the 950 carb as I only use an 850 right now. The 1-7/8 headers will do the job for you. Ron

Back in the early 90s we had a 68' Barracuda @3380# w/driver....

440 block 4.375 x 4.15

906 ported iron heads

.590 MOPAR solid cam

M1 intake gasket matched w/2in spacer

Holley 9375 1050 dominator

BME rods

About 11 static compression w/flats

2in fenderwell headers

727

9in "J" converter

4.56 Dana

SS springs w/inboard

Mopar rear shocks.....Koni SPA-1 fronts

SS Hemi style scoop

31 x 12 Firestones

Drove the wheels off the car on the street and only had about 15 runs in that trim before we switched to 440-1s, a solid roller and good headers.

Raced it on cheapo Cam 2 110 because we had a station 3 miles away that had it at the pump for $4 a gallon, so it drank that, mostly......but it would drive around on 93 pump with no issue.

In decent air at ATCO, 10.06 @135+.

Most fun car I've ever owned......cheap to build and low maintenance.

It doesn't take much to run 10.90s if your in the 550+ range and your converter and gear aren't in left field, but 3400# might be light for your car, unless you've taken some steps to shed some weight.

Hi ....everyone, nothing changes here ...well my combo has worked for me since I raced Gary Davis in 2004...10.90 and then some 3700 lbs I have had 3.73 to 4.30 and its pretty much the same...A good converter will work magic 8 ati changed everything for me