ok about to buy some cams for my 454,s there basically going to be stock rebuilds with intakes carbs and ignition.. i dont any cams whatsoever so im buying 2 looking for something with a good lope that idles well and pulls well up to the top.. whereever that might be.. i got some ideals what i want
whats everyone one else used or tried pros and cons this is hydraulic flat tappet.. also would be nice to have something i maybe able to use when i step up my heads to aftermarkets or something better way down the road

jason,if it,s in your budget,go with hyd rollers,hp500 efi cams idle nice,sound great,and make good power till 5500 rpm,every now and then you can find them in swap&shop,or call bob madera,very helpful guy.

What exhaust do you have? You will need to stay small on the cams to prevent reversion with stock manifolds and risers. I still have not upgraded my stock exhaust and run a Isky Racing 270/280 mega Hydraulic. Cam sounds great and makes good power without reversion. http://www.flatlanderracing.com/iskycamsmarine.html

If you go any bigger you need Gills or headers to prevent reversion.

just going to have stock manifolds with thru hulls..

upgrade down the road possible just on a budget and tryin to get em done and in so i can use it this summer.. reliablilty is a key casue i like boating.. lol

was looking at a 114 550 550 with beleive it was 218 218 at 50.. close to the same cam you have

Yep I like reliability also lol! The cams your looking at should be good and reliable. I built my new engine and did not have the money to also upgrade the exhaust at the same time so that is why I went with the Isky cam. My engine made 407hp at 5200rpm with accessories and dyno headers. So with stock manifolds it probably makes about 370-380hp. It is a simple engine, 468ci, 9-1 compression, with 188 heads, roller rockers, Edelbrock intake, Edelbrock marine 750 carb, etc.

thats kinda what im after and shooting to build i dont plan on gettin crazy on the internals and porting roller cam etc etc i used to be into nitrous drag cars and thats how we built em im just shooting for a good sound idle and reliabilty pump gas and fun.... ill find another boat to get crazy with if need be.lol

hey sunrocket what kinda prop pitch you turning and max rpm on that combo in water runnin?

know what kinda specs them have?

i use either the isky 270/280 mega hyd cam or comp cam xm270h..both are great cams but the comp cam sounds mean as hell at idle...both cams are jet boat cams and need 2* advance to idle nice but still have a lope to them..both are a strong midrange cam..
http://www.compperformancegroupstore...MARKIVCAMHFTXM

specs..http://www.compcams.com/Company/CC/c...?csid=404&sb=2

23p 3 blade Mirage had to much slip but spun to 5200. I bought a 25p Mirage Plus and only got 4500rpm but the boat was faster. I got a new 23p Mirage Plus that I haven't tried yet. I hope the extra cup in the Plus model is what I need to spin 5000rpm and get proper speed.

the comp cam is the one i have in my motors and yes it sounds a WHOLE lot bigger than it really is. i dig it!