Has anyone actually run the complete Edelbrock RPM package for the BB on a 440 or stroker engine? If so, how well did it work out and what setup (gears, stall, etc.) did you run with it? I'm thinking it would work pretty well on a 512ci in my street driven '65 Sport Fury.

The consesnus for years (even with ford and chevy) is that the cam in the package is leaves power on the table compared to the familiar name brand cams. And this was the deal back in the mid 90s when no one was doing strokers.

I would really want to cnc port those heads or you will leave rpm and hp/tq on the table with a 512.Intake will work but not the best choice for a 512 if you plan to make max power.
Cam is weak for a 440 and very small for a 512.

Now if you want low rpm power and a small idle then go for it.

So, there claim of 469hp/515ft-lbs is rather optimistic?

I think it is optimistic. We had the performer RPM, 850 DP, 509 MP cam on a 440 and I'm guessing we made 450 HP, 3.91 gears, 3300 lbs (w/o driver; 64 Fury) that ran 11.70's through the mufflers in good air.

I am running there cam in my 10.4-1 446 with there heads and a 6 pack. It feels like 500 hp that's for sure. I got to get some GO Pro footage of it killing the tires from a 20 mile a hour roll. I'm happy with it.

I've tried that performer RPM and did not like it all. I think it's costing you power, lot's better manifolds I think for power. My

Put me in the camp that camshaft won't make 550 in a 512 with stock stealth heads.

I didn't realise that you where going to run EFI, can you post the cam specs for both cams, duration at .050 , lift at the valves and lobe seperation angles? Does the car have power brakes? A big motor eats up cam duration and likes tons of air at wide open throttle so get a big throttle body Your going to need a set of very sticky tires mounted on the proper width rims for the tires for track use only to get it to run low 12s, even to run mid to high 12s 4000 lbs plus going low 12s is doable, not easy, but doable

I plan on having a spare set of wheels with some sticky Hoosiers for when I do hit the track the 5-6 times a year that I do.

Here is their little promo graph and the cam info. I will be running manual disc/drum brakes. Also, unfortunately big headers for a C-body are just not available so I will probably run TTI's 1.75", 3" w/H pipe, Flowtech Terminator mufflers, and exit under the rear bumper.

With the stock stealth heads you will make big torque everywhere but rpm will fall off quickly.Probably be all done by 5000rpm.
You definitely won't need 3.91 gears with that setup.3.55 or 3.23 would be more beneficial.
I can't understand why you would'nt port those heads so that motor can breathe.

I do want a torque monster. It will get better mileage and be more fun to drive on the street. However, I would like it to pull to 5800-6000 rpm. What cam would do a better job without sacrificing my low end torque? You really think the heads would need to be ported just for the mild performance I'm after? Couldn't I add some 1.6 rockers to help them breathe a bit if I chose a different cam?

With mechanical brakes, non vacume power assist, I would put a bigger cam in it like the Comp Cams XE285HL with 1.6 ratio rocker arms on it I had a stock stroke 440 motor with .030 over size 6 pak pistons in it with non ported Eddy RPM aluminum heads on it with a Eddy Performer RPM intake and a Holley 950 HP carb. on it using 1.54 ratio rocker arms(Harland Sharp 1.5 ratio that are actually 1.54 ratio at the retainers ) it ran low 11s(11.32) in the 1/4 mile in my 3450 lb Duster with 3.91 gears in it spinning the tires Your 512 with the same cam, intake and carb. will make another 75 HP and close to another 90 lbs torque Big motors(stroker BB Mopars) like big cams, big heads and big exhaust and intake and carbs

IMO, It'll make more torque, like 580-600, not any more HP. If it made 1HP per CU in, it's doing well in a stroker. The unported heads are the cork.

A couple comments... with 238 deg @.050 intake the cam will provide a lot of mid range torque with 512" and should work fine with PB tuned right. Lift, at under .5" is kinda on the low side. Its not a very aggressive profile in terms of rate of lift which will somewhat limit torque and HP. As a benefit it shouldn't stress the valve train too much. From memory, Ed heads continue breathing improvements up to about .6" lift so more lift = more HP.

If you want a little more HP+TQ without sacrificing drivability consider a more aggressive cam like a Comp XE high lift, Hughes or max effort MM lobe cam from Muscle Motors or others. I'm running a MM lobe solid flat tappet with 243@.050 intake duration on a 496 and love it. It is considered aggessive for the street but I have 10k or so miles without problem.

Heres my combo:

Stock Eddy RPM's
446ci stock stroke.
Eddy RPM Manifold
Proform 850
Comp XS282S

My combo made 500 HP and 542 Ft Lbs on the engine dyno.

I' going to guess on the MPH and say 121 or 122, maybe not, I can dig out that log book if it is important to you, PM me and let me know It ran a 11.42 spinning the snout out of the tires on the first run, I lowered the air pressure down and it pick the 60 ft. times up a bunch but the oil pump bypass plug came out at around the thousand foot clocks on that run and the car lost oil pressure, I didn't see the loss of oil pressure right away but I'm sure that loss of pressure slow the car down some I took it home and tore it apart, I ended up only needing to replace two rod bearings but I replaced them all I had dyno tested that motor and drove it on the street less than 25 miles before taking it to the track, I swapped that motor out (I had five motors assembled and dyno tested and ready to go back then, mild to wild ) for another new one, 464 C.I. 440 block motor with a sixpak and unported Eddy RPM heads on it. That motor ran low elevens, 11.0 to high 10s. best was 10.91 at 123 MPH best on the brakes in Mission B.C. As far as low in torque that 464 C.I.motor would spin the tires on the street pretty easily, I had a custom built 10 inch converter in the car back then that would flash to 4200 to 4400 RPM in 1st gear depending on which motor was in the car My car has ladder bars and coil overs with either M/T ET Street 13.50x30x15 or M/T 315x60x15 ET Street Radials, depending on which track the car was raced on last. It hooks pretty well usually, 1.43 to 1.52 depending on the track, elevation and weather conditions