Ok guys, here's my current setup:
414 ci BBC (402 .60 over),Speed Pro L2383 Forged slugs, Stock rods resized, shotpeened, etc.etc., stock crank, Edelbrock RPM manifold, Holley 3310, MSD 6A, Summit HEI distributor, Heads are 290 closed chambers. The heads have been shaved for a smidge more compression (CR somewhere between 10-10.5 to 1)they also have been cleaned up a bit, the valves have been unshrouded, valves are 2.19 intake and 1.88 exhaust. Fair amount of portwork done, nothing extensive but good amount. The cam is currently a Comp 270H, with .510 lift and 224 degrees of duration on both sides. Hooker Comp headers flowing through 2 1/2 exhaust. 3.73 gears. Car is equipped with a TH-400, 10 inch 3000-3500 stall from Midwest Racing. Car is full steel, non A/C, weighs in at 3700 pounds. Comp recommends their 292H, with stats as follows: .550 lift on both sides, 244/244 duration at .050. 110 LSA. This car is a weekend car, including some extended cruises with numerous blasts down the quarter mile. Should I go with what they say? Whats a rough estimate of the HP would I be looking at here? Thanks

If you actually have 10-10.5 CR then a cam with about 280º adv dur would work very well. If you can deal with the reduced mileage and rougher idle, get it on a 108 LSA, otherwise the 110 LSA will be fine.

Mike,
I have the exact same set-up except for a single plane (Excelerator) manifold. After much back and forth, I have decided to install the Comp LS6 Hydraulic Nostalgia series 276/283 229/236 .535/.524 on 112 LSA. Very similiar to the XE274 with a little easier ramp and .020 less max lift but on a wider center. A friend has the Comp 280H installed in a 396, pulls hard Mid-Range but lays down on top, I think these heads need more exhaust duration to work best.

Another cam I keep hearing about is the UD 280/288. How would this cam react to my combo? How would I even go about getting this cam, as I looked through Lunati's stuff and haven't see it.

I have the XE 274 comp cam in my 396, Great performance and nice thump :D

Please consider an old Isky 280 Mega Cam ground on either 108 or the Marine version on 110 LCA's..

Either one should do you very well, imho...

pdq67

ive got about the same combo, my car weights in at 3900 lbs, im running a 2800 brake stall,th350, but with some 2.41 gears.....

engine wise im running the same except i went to a torker intake, and running a split duration custom ground cam from delta cams...........they sell them for like 49 bucks and grind them just for you......233/239@.050 548/551 lift on a 111 ls.........

the cam is pretty lumpy but it is a very hard puller from 3000 to 6000+........it really gets my car moving even with 2.41 gears.....

before my few changes the engine was putting 300 hp to the ground based on my trap speed....

i havent been to the track yet..wont til spring but i know i picked up a few hp...with the intake change and timming curve....and im sure my stall help too maybe not so much in hp but to get off the line better.......

i would go with a split duration cam......and get as much lift as you can get.......

Mike,
I run a comp street solid roller 273/285.
236/248 at.050. 113 LSA installed at 108.
Has a nice sounding Idle, not to rough. 14"hg at 800 rpm. A solid with the the same .050 specs should provide nearly the same performance. Comp could grind a custom on the magnum solid line. 282/294 which would be 236/248 at.050 .561/.595 lift. with a wider lSA should give excellent performance. My engine specs are nearly the same as yours. I run open chamber iron ovals. Performer rpm w/ 750dp. 2400 rpm lockup converter in the 700r4. Just one more point of view.

My friend has that CC292 in his .030 over 402 and with 244deg dur @ .05 this is a hot cam,sounds like it,idles rough,and it runs like a raped ape.

If this cam would be going in a stick car and you dont mind a rough idle,being a little soggy
on the bottom end but has a lot of upper mid to top end H/P then it's ok for you.

If it were me i would maybe go for a little more cam then the smaller one you mentioned but i would not go with the 292 unless you really want
to run real hard. It really comes down to what you really want from the car and how it will be used.

I would est approx 420-440 HP with the 292 cam,less with the smaller cam.

Scott

I think the 292 cam is in the ballpark. But I agree with the others that a split duration cam would probably work better especialy if you are running though an exhaust system.

ddeennis, Delta Cams does not have a website, correct? Got a phone number, or a website, because deltacams.com doesn't work.

http://www.deltacam.com/index.htm


is there website hope this helps i called told him what i got and he made a recommendation and if i wasnt happy with the grind then i could send it back and he would grind me another one free off charge but i would have to pay for shipping.............nice guy to talk to (he listened to what i said and didnt act like i was wasting his time).....for the most part im happy with my cam....i just wished it would idle just alittle better but i dont want to give up the top end pull i got, it sets you back good......i know it dont campare to the 10 sec race car i have but still it pulls damn hard.....

SWHEATON, would you happen to know of any times on your buddies' car?

As far as the split duration is concerned, what if I ran a couple of cut outs, or even ditched the exhaust completely (at the track, that is)? Would that allow me to maximize the gains from the 292, or is that problem inherent to the heads?

I will say that I am leaning towards this car being a sort of max effort car,(or really hot street car) so the big 292 really doesn't scare me if thats the cam that will help me out the most. Also, thanks for all the replies guys. I really appreciate it :cool:

There's yet another CC flat lobe story posted here on the board. There's been more than just one or two of these in the last six months or so, I'd urge you to consider a Harold Lunati grind or Crane or something. Ever looked at the Crower stuff?

Tom

I've heard of Lunati Cams,,,never heard of Harold Lunati,,,are we bashing Tom? The company you speak of probably out sells the rest by 2 or 3 to 1...so wouldnt you expect to hear about a little more problems? I'd also venture to say,that some of the people here installing cams, don't have much of a clue...do you think that would lead to the problem also? equal time :D

Originally posted by Rapid Robert:
I've heard of Lunati Cams,,,never heard of Harold Lunati,,,are we bashing Tom? The company you speak of probably out sells the rest by 2 or 3 to 1...so wouldnt you expect to hear about a little more problems? I'd also venture to say,that some of the people here installing cams, don't have much of a clue...do you think that would lead to the problem also? equal time :D Lunati is owned now by Holley but the guy you're thinking of is Harold Brookshire. Been grinding cams for a number of years. I've had two Comp Cams in my 396, one CB268H and one XE262H. After the XE series went flat on one lobe, I called Harold. Seems he's the only one that would grind a cam on a 114º lobe separation for me that FI likes.

Nothing against Comp Cams but I'd be leary of the XE series. Seems a lot of folks have had problems on a street car due to their 'aggressiveness' (?) Here's mine after less than two years and probably less than 8000 miles.

http://www.chevelles.com/showroom/396guy/cam_lifter.jpg

RR,

I made no negative statements about the company in question, nor will I. However, I can and will comment about the stories posted here, and there's no shortage of those. If the company in question is doing such a hot business they should be able to afford to implement adequate quality control procedures. Being big and dominating a market does not mean a particular company produces a quality product. Take a look at Microsoft, for instance.

Are you volunteering to stop by the guy's place and change out the cam and lifters, maybe clean out the pan too, if the cam goes bad?

Tom

No Tom, I'm not volunteering for anything,but one of the other BIG companies that you mentioned,apparently needs the same quality control,I got my sons truck running last March and by July, 2 lobes had gone bad on it,,,had 2 lobes that looked like that pic and 2 concave lifters as well. I know Lunati,I'm running a Lunati cam in my car for 4.5 years and my sons truck now,but I was running a Lunati cam long before Mr.out-of-business Ultradyne went to work for them.