Has anyone here ran the Duntov 3030?

& beyond...if you were feelin' lucky..

 

I only buried my factory 8 grand tach a few times...
Had to change my draws after the first time..
I sure miss that ol' car...

 

Go with the 30.30. Sounds wicked, pulls HARD 3500-up. Newer don't mean better.. I believe you won't regret it at all. I ran a light weight flywheel, however I think you will be OK with a good steel one. Have fun!!!!!

 

Yeh, it'll get your attention, that's for sure . Somehow, I've managed to hang onto mine, 35yrs & countin'. But that's completely OT, and for a different forum.

 

Not at all if it's tuned right. If I remember, Summit stage II intake is a take off of the Edelbrock RPM air gap right? Dual plane, very long runners, and a void under the carb pad. It would probably be a different story if you had an old pair of fuelies, a 2101 performer and it wasn't ever gonna see strip duty. With you alloy heads and that intake, a 750 would be the right call. Do yourself a favor and invest in good ignition parts and a wideband air-fuel meter system. Once you get your head wrapped around it, you'll have it flying in a matter of hours-not weekends.

 

You may be thinking of the offroad cam that GM offered about this time. I believe it was referred to as either ann 094 or 098 cam (probably the last digits of the part number) It was a high RPM cam that chevy said was for off road (drag race) use.

I put this offroad cam in a 4 speed/headers/4:88 geared 327 Nova in about 1970. Its low endstreet driveability was poor with a single carb, but once you hit about 4500-5000 rpm it would really throw you back in the seat.

 

Thanks for the advice man!

 

I agree with the above.

 

Good cams today are orders of magnitude better than what was done in the old days. That doesn't mean the old stuff is unusable, but emotion and nostalgia aside, things are what they are.

Looks like you got the answer you were hoping to hear?

 

Nope!.... It was a stock 302 with a set of Hookers and Cherry Bomb header mufflers in a '69 Z/28...

 

The only way I would seriously consider running a sixties (or fifties era) cam is if I was doing an absolutely 100% period-correct engine build, and then I would probably do it. I get that. What I DO NOT get is putting a 45 year old cam grind in a motor with all sorts of modern visuals (aftermarket heads, modern intake, ect). This makes ABSOLUTELY zero sense. None whatsoever. But then, most of what is said on cam threads on here falls into that category, which is why I generally stay the hell off them. Which is what I am gonna do here. Geez Al, we gotta stop agreeing with each other, people are gonna talk...

 

Not necessarily just appreciate all the input i can get with my camshaft choices

 

Remember many guys AND gals running the "30-30".Sweet sounding cam.Lot of the people running them where I was born and raised also called them"Winchesters".(30-30)
Good luck.Have fun.Be safe.
Leo

 

I've posted this cam number in a few other posts. I had one of these in a 302DZ motor with iron 2:02 worked over heads, port matched Holley Z-28 Intake 650 mechanical secondary carb, and a MSD ignition.

This mechanical has a little more lift, less duration, less lobe separation, can take a little less compression and sounds like the end of the world, and pulls like crazy...



1025 EP-25

Powerband 2500-6500 RPM. Street & strip, brackets, moderate built. 10 to 10.5:1 compression

IN .507” 280° .338” 244° 108° lobe separation
EX .507” 280° .338” 244° ​

 

The 1st one I ever bought was a 30-30 knockoff made by Wolverine. Same $$ as the stock 327 Chevy cam, so I figured, what the hell. I had the polylocks too, I recall setting the valves at .025 for some reason. It had a great sound to it, although they worked better in the stock cars, had a great bite off the corners.

Bob

 

The 1970 Z/28 with the 350 LT1 engine had a slightly different solid lifter cam. The intake lift and duration was the same as the 30-30, but the exh. was tuned down a bit. This gave a little better low end. I put one in a friends 69 302 Z/28 and drive ability was a lot better down low.



Ago

 

youve got a good set of heads, get a modern cam to take advantage of your set up.

 

cams have improved a great deal since the 097 and "30-30" cam were the hot setup BUT there is nothing to my ears that sounds better than a solid lifter setup-but I'm an old timer too-unless you wing it alot valve adjustment is not a big deal--I have an 097 in my 57 FI BelAir and adjust it every so often but not a big deal--love the sound and it runs pretty good as well. Elgin makes copies of the 097, the 30-30 and the 140 off road cam--have used a few with great results.

 

I ran the 30-30 in a half a dozen cars. Very lopey. I too, love the sound. Nothing like it in today's cars. I had one in a 348 '55 Chevy truck in 1959, high compression, and the truck would shake the ground. You'll like it and so will everyone else that hears it.

'' Real hot rods don't have fenders "

 

http://www.compcams.com/Company/CC/cam-specs/Details.aspx?csid=111&sb=2

I run this in my bracket car. Comp claims it is a "30-30 with modern power". It has more than enough vacuum for power brakes, a rough idle that everyone likes, and plenty of power from 2000 to 6000+ with a holley 750 dp.

 

The Chevrolet solid lifter cams : 30-30 used in Corvettes and 302s Part # 3849346 .447" lift , 313deg. duration int.& exh. 283deg. at .015 lift. The 1970 350 Z/28 LT1 solid lifter cam part # 3972178 .438" int. .455" exh.
duration 317deg. int., 346 deg. exh. at zero. 280 deg. int. 308deg. exh. at .015. I don't know if these are available anymore.




Ago

 

How much carb am i gonna need? wont a 750 kill my bottom end power?

600 good crisp steet power--stop light drags---750 strip midrange topend power---strip performer---30/30 is way stronger than duntov .097---i like the clatter --in the old days it seemed you could hear it a block away

 

You could also try a 650 dp List-4777
or even a 700 dp List-4778 Holley carb...
Not too many folks know about those two...

 

I was using a Holley Q-Jet replacement carb with one of my 30-30 forays, which I believe is a 650 CFM and it worked well with the cam.

Bob

 

My 65 Vette had the 30/30 cam with 4.56 gears could wind out to 130 easily ,ran the cam 3 degrees advanced. When I sold car the new owner beat a Shelby Mustang that was a top runner in area.

 

I had several motors with the 30-30. Great cam. Be outstanding in a old hot rod.

 

The 30x30 is very streetable. It will also go fast.
There are better cams but they cost more.
"Noisy" is subjective.
On a 327, a 750 or 780/3310 carb is a good choice. Set the secondarys so they come in a bit later. I prefer the 780 because of the down facing boosters.
I have a 30x30 in my parts chaser (30 2 door) with a stock 350 and drive it almost every day.
It has a lopey idle about 800. This engine has an 850 carb on it.
This engine with no changes pushed a 38 Chev coupe 153 at Bonneville last year.

 

An 850 on a small block is overkill for the street....

 

I would stick with a 650-700ish cfm carb. My 302 (alum heads, hyd roller, etc) made 300rwhp with a stock 670 street avenger. Milled the choke horn off and made 301rwhp. Didn't make any internal changes, was perfect out of the box. Peak power was 6200

 

Not if it makes 450 hp and is smooth as silk.