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ZZ4 cam how does it idle below 700rpm

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Old Feb 14, 2001 | 03:19 AM
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evilho7810's Avatar
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From: chicago, il, us
ZZ4 cam how does it idle below 700rpm

ZZ4 cam how does it idle below 700rpm? I really don't want to have it idle any higher than that. Right now stock cam and converter it idles smooth as hell at 500 rpm. I want to keep the idle as smooth as possible is this too much cam? If you have this cam please let me know. Also if you have a LPE 219 cam, Lt4, or Lt4 hot cam how do they idle? I don't want a car that surges forward when you let off the brakes I like it how it is right now, would a new converter help?
thanks
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Old Feb 14, 2001 | 02:02 PM
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From: Orange, SoCal
Car: 1990 Pontiac Trans Am
Engine: 355 TPI siamesed runners
Transmission: Tremec T56
Axle/Gears: 12-Bolt 3.73
I have a manual trans and it idles smooth at 750 RPMs. Yes I think a higher stall converter would help what you described. The LPE219 and LT4 HOT cam are both big cams with a lumpy idle. The LT4 stock cam is only slightly bigger than a stock 350 TPI cam, and would idle the same.

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Old Feb 14, 2001 | 09:15 PM
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From: PA
Car: 88 Firebird WS6
Engine: 350 TPI
Transmission: T56
Axle/Gears: 3.42
I have an auto and it idles fine. Even 650 rpm is smooth but it will only idle where the computer tells it too.
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Old Feb 14, 2001 | 10:23 PM
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From: chicago, il, us
thanks
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