Performer RPM ?

[Ole Blue 68]

Neither did I! I was just looking at them since they're made by the same company.

Originally Posted by sweet n rare67

Well, I have The Performer RPM cam and Performer EPS Intake and reworked heads. So far I like it pretty good but I have had No Street time on this setup so I will see. I didnt know so many people hated Edelbrock Cams.

[Green Machine]

If you could open and close the valves instantly, then it would make no sense to open the valves past max flow lift. However that clearly is impossible. If your cam lifts the valve .400 then it is at that lift for perhaps only 10 degrees of crank rotation. During the other 250 degrees or so of travel the valve is either opening or closing and is not at max flow.

If you lift the valve .500 then the valve will see .400, go past, back down to .400. It then might be at max flow for 50 degrees of crank travel. Its called the area under the curve and will give you better power.

[Sonny's at Work]

I have a friend who has the same carb, but has the performer on a sbc and his powerband seems smoother (he has about the same cam I have). I don't like the carb either. It's too sensitive to environmental changes and here in Georgia the humidity fluctuates like crazy. I haven't found a happy medium yet either. I will be pulling the truck in the garage here very soon to begin the restorodification process. One of the mods I want to do is install either a TPI, LT1, or LS1 so I won't have to worry about it anymore.

[Ole Blue 68]

Hey 70 RS/SS, good info. I've got a pair of 487 heads that came with the engine that are currently in the machine shop. I couldn't find flow numbers for that particular head but I did find some info on 882 heads which has similar specs to the 487 head. It says the 882 heads max out at .600 lift.

[RPMkid]

Just to throw in my two cents.

I have a 78 305.It's .030 with stock type replacement pistons.(Guy built it and didn't like how it ran.Built a new engine and sold me this one.(882s +stock cam=sucks.

Now the engine has Pro ported 461 heads,The lunati bracket master cam 2 that you just listed,Performer RPM,HEI,hedman 1 5/8 headers,1406 carb,

The truck is a 69 longbed with a 3 speed on the column with a 3:73 rear.

This truck runs really good!

I also ran this exact same cam along with the intake and headers on a 350.Torque out the wazzoo.

I think it is an exellent cam.Idles are 750RPM's with a slight lope.You can tell its not stock.I have also ran a comp 270h.And it sounded more like a race cam.But it didn't make power till around 2500RPM.

I would use the cam you have.Swapping a cam out isn't that hard to do.No reason to not use it.I know the edelbrock markets their cam and intake as a combo.Which it is.But if put it togother with the wrong engine.(Low compression)It won't run as good as if the proper cam was used.

What I'm trying to say is just try it out!You'll like it.