I think i may have found the cam i want not sure though because i choose the first cam and that did not work so great. Here are the specs on my engine

468 bb forged crank h-beam rods 11.5:1 pistons, AFR 305cc, Victor Jr intake, holley 850 (950 HP in the future), TH-400 with brake 4500 stall on brake, about 3500 on foot brake and 4.11 rear end with 27' tires.

The cam i was thinking is a crane nitrous grind solid flat tappet. I dont have nitrous yet but will very soon.

Adv. dur 296/304
dur @.050 260/268
lift .628/.648

114 lobe sepreation on 110 centerline.

I am not at all worried about the manners of this engine or vaccum or anything like that.

On the DCR it works out to be 7.8 which i know will run on pumpgas safley.

what do you guys think?

That's an aweful wide lobe separation, how much N2O are you going to run? If you plan on a lot (like 300 'ish) maybe that's a good choice because of the early EVO timing. But the AFR 305 has an awesome exhaust port so there should be plenty of time for a good blow down without an extremely early EVO. Maybe something with a 110-112 LSA and similar durations would make more HP when you are NA and not give up anything on the bottle.

If you were concerned with NA power, then I would go even tighter on the LSA (like 106-108) especially if you weren't concerned with street manners.

Just my opinion.

i am planning on running a 200 shot possibly a 250.

The cam i have right now is on a 108 lsa and i dont mind how it idols or its manners on street but it just doesn't perform how i want or it should. It is an isky grind 310/310 adv 264/264 @.050, .590 lift 108 lsa istalled at 108 cinterline. I also know a guy that had a milder isky grind in a BB and could not get it to run how it should

Thanks

What about 256/264 on a 112 lsa this would bring my DCR up to 8.1 Anyone think this would be a good choice?

Thanks

112LS would be good all around - n/a & spray.
What do you mean - the cam that you have now doesnt run the way it should? Your engine should be putting out 675hp+/- with the 305 AFRs, and your car should run some high 9s, if its a lightened camaro and set up decent. Does it run mid - high 10s? It may not be your cam, but other things in your set up which are holding you back. I wouldnt just throw cams at it to get it to run better, there doesnt seem to be anything wrong with the cam you have now.

How are you checking your flash speed?
Are you using a play back tach??

The cam and intake are TOO big for those gears and converter.

As well if you arent using nitrous your money is Far better spent perfecting what you have rather then spraying it.
You cant build a Nitrous engine to run outstaging on and off the spray, build it for it, or forget it.

Huh?
Tony at AFR has actually recommended that intake for his heads, and you'll need an intake like a Victor jr. to feed heads that flow around 370cfm.
Also Victor jr. will pick up power with spacers, on a combo like this, if it was too big that wouldnt happen. I've seen 15hp from spacers on healthy BBCs like this

I also thought that it should be running in the 10's but i know that it isn't even close and i dont know why. I thought it was the cam because its specs are different than the other cams i see. i mean it is 310 adv with only 264 @.050 and .590 lift. Most cams i am seeing that are 310 adv are like 272 @.050 and at least .630 lift.
and up to .660 lift. I just dont know what is wrong.

I will leave this cam in until i go to the track again in a few weeks. I have not been since the car ws first finished and it only ran mid to hi 11's.

If anyone has any ideas to try before i go the track i would greatly appreciate the help

my cam is not too big for my converter or my gears. Isky says to run a 3500 converter, and 4.11-4.56 gears so i am safe there.

You dont have a sig? We need to know more about your combo/car. I usually see cars in need of a good fuel system, good exhaust system when theyre at this level. Also what kind of airfilter set up? Whats the total timing at? What jetting?
Give us some more info and I'm sure we can get it in the 10s easy (with those heads 9 are possible)
Your cam defenetly needs more lift - 590 after the lash is takin out aint much, so your not using the potential of those heads, but first get the car running right. Give Tony @ AFR a call, he'll set you up on a cam for the street or strip.
Good luck with it. graemlins/thumbsup.gif

Here is the entire car Front to back.

Gen V 4 bolt block 4.31 Eagle 4 inch stroke 4340 crank and eagle H-beam rods Ross 41cc dome pistons, Vic Jr intake. The holley 850 has 79 primary and 81 secondary jets with 3.5 power valves. The ignition system is an msd pro billit ditributer and blaster 2 coil with a mallory hyfire vi digital ignition box. initial timing is 21 and total is 38 in at 2700 or so.

The fuel system
stock tank and pick up Holley black pump and factory 3/8 line to the front. Goes into a y-block and out to 2 -6 lines to 2 regulators (planned ahead for the bigger line and nitrous) Then -6 from regulator to each bowl

Th-400 with brake and 4500 stall
4.56 gears Chnging to 4.10 when i go through and get new axles and stuff.

10 point cage and subframe connectors
South Side Machine Lift bars and 27/11.5 hossier quick time pros.
oh ya and the air filter is a 14x3 k&n

The exaust has 2" primaries into 3" colectors and pipes with 3" delta Flow 50 series mufflers

I think that is everything

Thanks alot.

Man - what did you do - **** all these guys off? nobody is replying.
The first problem I see is the fuel system, the stock 3/8" line aint cuttin it.
Your timing sounds ok, the jetting should be close enough with PVs.
Did you degree in the cam, I've heard of the cam being off and the engine
not make much power, as 113mph (3470lbs) would mean you have around 400hp. :(
Something is way off! Cant help you on the crankin psi, I dont know.
Have you uncapped it? The exhaust should be ok, but I've seen a couple of
cars pick up 1/2sec. by uncapping Flowmasters - dont ask my why, it doesnt make
much sense? (one a 11sec 383sb car)
Have you considered calling Tony @ AFR for a cam? Other places I'd look would
be the trans or converter - they may be fried, not gettin the power thru.
I'd expect your car to run around 130mph. No I dont really know how to tune an engine,
I just set the timing at 35, and jet up a bit - thats it, (it was good on the dyno) never
spent much time on it at the track - heck I still cant get this Demon carb workin right. graemlins/clonk.gif
Make sure you're getting full throttle, and check all the small stuff. Have you ever tried
another carb? just throwin ideas out.

I was also thinking the fuel system but not this much of a difference. I have a friend that was running a 5/16 line and Black pump with his 350 and a 225 shot of nitrous, i couldn't beleive it did not go lean. I have tried a different carb no change, trans is brand new, second one actually. I didn't degree the cam that is another reason i was going to replace it because i figured if it was apart i would get more lift anyway. The full throttle thing was a problem at the track that i had not found yet but it was close and not all that much difference. Also i am at high elevation, 6000 ft, but i still know it isnt running right at all.

Well thanks for the suggestions i will keep working on it