I posted erlier about which cam I should put in my car. Is this the one (to big)
SPECS ON CAR:
85 camaro 305ci
600 cfm performer carb
torker II intake
hedman headers
soon to buy 58cc aluminum heads


SPECS ON CAM:
Brand:EdelbrockProduct Line:Edelbrock Performer-Plus Cam and Lifter KitsPart Type:Camshaft and Lifter KitsPart Number:EDL-2102Cam Style:Hydraulic flat tappetBasic Operating RPM Range:Idle-5,500Intake Duration at 050 inch Lift:204Exhaust Duration at 050 inch Lift:214Duration at 050 inch Lift:204 int./214 exh.Advertised Intake Duration:278Advertised Exhaust Duration:288Advertised Duration:278 int./288 exh.Intake Valve Lift with Factory Rocker Arm Ratio:0.420 in.Exhaust Valve Lift with Factory Rocker Arm Ratio:0.442 in.Valve Lift with Factory Rocker Arm Ratio:0.420 int./0.442 exh. liftLobe Separation (degrees):112Intake Valve Lash:0.000 in.Exhaust Valve Lash:0.000 in.Computer-Controlled Compatible:NoLifters Included:YesLifter Style:Hydraulic flat tappetValve Springs Included:NoRetainers Included:NoLocks Included:NoValve Stem Seals Included:NoTiming Chain and Gears Included:NoAssembly Lubricant Included:YesPushrods Included:NoRocker Arms Included:NoGaskets Included:NoQuantity:

 

Way slow lazy old school cam. Entirely wrong for a street driven 305, IMO. So is your intake. Many people here will outright bash that manifold. I have had good luck with it, when its used in the right application. A street driven 305 is no where even remotely close to a proper application.

 

Well idk i dont think its all that bad. Well the ramp rates are not the most aggressive ever although maby thats not such a bad thing with the lack of ZZDP in modern oil. Other than that the specs dont look half bad to me for a street car. The biggest problem i have is that that cam dosnt really match that intake too well. I think you may want to concider a bigger cam or change the intake.

 

That cam is def.not too big,I would say get a Performer RPM intake.

 

So bigger cam keep the intake OK. do you have any idea what duration and what lift I should be looking for

 

I think you need to read again what ljnowell said about the intake.

Why the Performer carb? Yuck! An absolute downgrade from the stock q-jet.

Get a Performer EPS or Performer RPM spreadbore. A Comp XE268 would be a good match with either of them.

 

Thats the problem. The ramp rates. You will get a lot of cylinder bleed off. What you end up with is an engine that has a lot of bigger cam characteristics(lower vacuum, less low end tq, etc) without the benefits of the bigger cam.

Get a cam grind that isnt 35 years old, and dont worry about the oil. Lots of people are dumping that oil in lots of old engines with flat tappets. More poeple spend more time talking about a problem that rarely occurs.

 

Well i can respect what your sayin as theres alot of value to it. My oppinion on the matter is alittle different. For starters you are right the less aggressive ramp rates are not the best for performance but really the flow rates are so minimul at the .050 lift point i would not expect a great deal of cylinder bleed off low torque and so on. At least not so much more than another cam of comperable duration specs. Now the "area under the curve" would be a bit higher if ramp rates were improved and that would help performance no doubt but concidering its a 305 i question how much it would benifit concidering how large the cam would be in the first place. Not to say that its the best cam out there but again taking into account flat tappet wear less aggressive ramp rates help a bit. I wont argue with u over the lack of zzdp causeing cam failure because there are lots of variable that come into play and i havnt really seen any hard facts as to how much effect the lack of zzdp has but do a search to see the countless accounts of cam failures and add to that a steeper ramp rate and higher valve spring pressures. Granted many of thoes could be accounted to normal wear and tear or improper break in so its hard to tell how much of an effect the lack of ZZDP has had but i can assure you the lack of ZZDP does not help matters. Alot of people use modern oils in there old flat tappet cars true but again look at the cam specs and valve spring pressures of the cars they go into. Even if it works though whos to say there life wasnt shortened by the lack of ZZDP? Thats not the point of this thread so im dont really want to get into a huge disscussion over it as alot of it is speculation without much hard evidence but its deffinetly something to concider.