Edelbrock performer VS RPM II

[bentley429]

Does a PRM II upper line up with a lower from a edelbrock performer or are the ports different on a RPM lower. Basicly Iam trying to figure out if I can reuse my lower intake and sell the upper for the RPM upper which should work better with my supercharger.

I believe I have the World product Sr heads on my car but I need to still pull a valve cover to make sure(been raining here). So Iam thinking if I was to get those heads cleaned up I would run a combo as follows:

Performer RPM II
World Sr heads
Custom Comp cam, specs are:
int. exh.
gross valve lift .513 .513
[email protected] 224 230
adver. duration 276 282
lobe seperation 114.0

With my Powerdyne BD-11A running about 10 psi, and supporting mods. Shooting for over 400 rwhp.

How does this setup look, or should I be thinking about a different combo.

 

[88Stang331]

Why not just sell the Performer and use all of the RPM II??

 

[Grn92LX]

No, it won't work.

 

[bentley429]

Why not just sell the Performer and use all of the RPM II??

It was just a idea because I was told by someone that they match up, apperently he was wrong. How about the combo what do you guys think?

 

[90_Red_LX]

The RPM and the performer intake's make up, but the RPM II runs a triangular port shape therefore it won't mate to the performer/performer rpm's rectangular ports.

 

[5spd GT]

If I were to guess, the RPM II will bolt-up, you just need to move the locating screw pins, the ports are different shaped, so it probably isn't ideal.

Atleast that is what I see from the pics summit has when I have looked.

 

[88Stang331]

Just use the RPM II upper and lower, and sell your performer.

 

[tmoss]

I'd give you different advice, but the experts have spoken...........

hints - your blower is a centrifugal and the Sr head flows ~225cfm tops in stock condition and I assume this is a street car.

 

[5spd GT]

I'd give you different advice, but the experts have spoken...........

hints - your blower is a centrifugal and the Sr head flows ~225cfm tops in stock condition and I assume this is a street car.

Hehe

 

[87AODGT]

yes it will work with no problem, just port match it. I know because my car has that done right now, I snapped a bolt from the upper to lower and then snapped and easy out in the lower so I bought a regular performer lower and port matched it to the RPM II, works fine

 

[5spd GT]

Yeah, I always thought it would bolt-up...

I have always heard that it wouldn't...

Hmm...