Performer RPM intake
December 26th, 2018, 03:25 PM
#1
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Performer RPM intake
Anybody use an Edelbrock performer RPM for a 350 in a 72 Cutlass or similar A body? Debating over which intake to go with. I'd like to use the RPM but am concerned about hood clearance.
December 26th, 2018, 06:26 PM
#3
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Join Date: Feb 2013
Location: Phoenix, AZ
Posts: 13,759
Agreed. There’s no clearance issue (I have one on my 350) and the question of whether it’s a match for your engine setup is key. For a stock engine it’s overkill and likely detrimental to performance.
December 26th, 2018, 08:34 PM
#5
The Rpm will be fine. Even in a stock app. Should clear and not be an issue. I wouldn't bother with a performer. For your set up it will be perfect.
Last edited by coppercutlass; December 26th, 2018 at 08:36 PM.
December 27th, 2018, 07:27 AM
#6
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Join Date: Dec 2006
Location: Melville, Saskatchewan
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There is an argument on the Performer vs RPM. Some have shown on a 9 to 1 350 a gain with the Performer at the track. Others have claimed gains on vin 9 307's with the RPM at the track. With your motor, which isn't very mild, a RPM will work very well. I could probably put a 1" spacer on my RPM and it would still fit on my 70. I lost performance going from a Performer with a 1" open spacer to a RPM intake. I would bet 99% of the loss was going from a 2300 to 1600 flash stall and weaker first gear of the TH350 vs the TH2004R. What gearing do you have? What is a mild stall?
December 27th, 2018, 09:01 AM
#7
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There is an argument on the Performer vs RPM. Some have shown on a 9 to 1 350 a gain with the Performer at the track. Others have claimed gains on vin 9 307's with the RPM at the track. With your motor, which isn't very mild, a RPM will work very well. I could probably put a 1" spacer on my RPM and it would still fit on my 70. I lost performance going from a Performer with a 1" open spacer to a RPM intake. I would bet 99% of the loss was going from a 2300 to 1600 flash stall and weaker first gear of the TH350 vs the TH2004R. What gearing do you have? What is a mild stall?
December 27th, 2018, 10:09 AM
#10
Out of Line, Everytime😉
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Location: Melville, Saskatchewan
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Upgrade that converter to something like a 2200 to 2500 stall. You have enough cam and compression to warrant it. I went from a 2300 flash stall, rated at 2200 to 2500 rpm. I currently have a stock stall that flashes at 1600 rpm, it sucks with my 9 to 1 350 with a 214/214 cam. I went from 1/4 block burn outs to barely spinning the tires. Hopefully your builder upped the shift points from factory 4000 rpm to 5000/5500 rpm full throttle shift points.
December 27th, 2018, 10:20 AM
#11
X2 for the bigger stall. Even with a mild cam you may have a hard time setting the idle rpm in gear due to ir being tight. A stock stall was tuneable with my carb but when i went to tje sniper EFI on my Pontiac it did not like a big rpm drop and it would die. I could have tuned for it with the efi but i suspected tje converter being tight for a long time. Just fwiw. I ran a 2800 stall and it was good on the street in my cutlass went to a 3500 stall. Not horrible but most may not like its characteristics .
December 27th, 2018, 03:14 PM
#13
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Location: Central Fl
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Clearance should not be an issue. The bigger issue is it a match to your engine? The operating band is 1500-6500 rpm, for a stock engine its a bit overkill.
December 27th, 2018, 04:31 PM
#14
I didnt want to go there but i ran an rpm intake on a 307 with a 650 DP Holley. On a stock 307 lol. Was a peppy little engine in my 72 when i was between 350's. Would lay rubber like it was no ones business.
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