im trying to get some info about this cam like how big it is what kind of power i can expect from it and most importantly what rpm should this be shifting at..

http://i121.photobucket.com/albums/o...per513/cam.jpg

 

There are few that run that cam on here.what heads are you running?What do they flow?also What is done to them?

 

i just have stock ported heads with bigger springs and what not

 

I will say you will be shifting somewhere around 6500 to 6600 and about 375 to 385 rwhp.

 

are you taking in consideration all my mods in my signature?

 

I dont want you to get your hopes up.Just my opinion but, I will say get rid of the aftermarket maf then get it Dyno tuned.Then mabe 390 to 400.I am used to dynojets the ones around here are not as forgiving.If you are looking for over 400 rwhp then I think you need bigger valves in your heads with that cam.

 

thanks alot for your input

 

A few more questions.. would you guys consider this to be a mild or mid size cam? It doesn't sound that aggressive so I just assumed it was a mild cam. Also is this cam/setup a good setup for nitrous?

And if someone were to ask me what kind of cam I have do I tell them its a comp cam and or do I tell them the specs which would be??? Sorry if I come off totally ignorant but I don't know **** about cams

thanks guys

 

I would call that approaching large for a 355.
I would also call the XFI grinds crap though, they get a lot of press and guys who have them say great things but I am not seeing ACTUAL RESULTS.

You pretty much have to run beehives with the XFI grinds. A guy on the Impala boards tried an XFI with Comp dual springs Golen and RacePrep both told him would be fine and I had to be the first to tell him to put beehives in it and after a few more guys jumped in he tried it and low and behold beehives fixed the high rpm miss it had.

I would second the ditch the aftermarket MAF comments, I would call it a bigger mistake than buying an XFI cam.

Above you said
"i just have stock ported heads with bigger springs and what not"

This means almost nothing, ported stock heads could be anything from worst than stock to awesome on a race built 383 or anywhere in between. Valve size is not a huge deal either a set of competently worked LT1 heads with 2.00/1.56 valves can be a killer setup, even with the stock 1.94/1.5 valves they can make great power. No need to do the 2.02/1.6 thing all the Gen 1 guys use.

 

the stock valves become a big retriction after you start wanting the extra mile out of your port work.not just the size but also wether they're undercut/swirl polished.To give you example just by switching from stock to undercut/swirl polished 2.02 valves I gained about 25 cfm at .500.the whole flow map picked up from .100 to .600.That is a substantial gain in horsepower across the board.With stock valves i would venture to say you could get around 250 cfm max flow.i know there is more than just peak flow but,your only going to gain so much.then you will need to change valve sizes thats why everyone who makes big numbers N\A does this.I say this all this because, i believe the op is at this point in his build.

 

alright looks like im ditching the MAF sensor then..

alright guys with the whole "i just have stock ported heads with bigger springs and what not"... ill get detailed list of whats all in the heads and the rest of the the setup.. everything in the engine is new and or upgraded.. ill get the specs in the afternoon

now 96capricemgr when you say "You pretty much have to run beehives with the XFI grinds.".. not sure what your talking about

 

he's talking about beehive valve springs

 

The XFI lobes were designed specifically around the capabilities of beehive valvesprings, guys have tried to instead run duals and it just has not worked. I am sure if you went to some wild race spring you could get it too work but that is going to be too much spring pressure for other parts.

 

what determines ifs its a wild race spring or closer to factory one the size? because these springs are WAY bigger than the factory ones.. also it would be too much spring pressure for which other parts

 

what is wrong with the maf if you tuned it. I am curious because I have a granatelli and the car was tuned with it. I still have the stock one if need be.

 

got me.. everyone is just tellin me to ditch it