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  #1  
Old 05-18-2003, 07:41 PM
birdman birdman is offline
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does anyone run a crane blueprint cam "t" .469 lift in a 455?wondering how it idles?mine is pretty lumpy,but will idle at 900rpm,with quadrajet wouldnt idle under 1500 r.p.m with 850 holley

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Old 05-18-2003, 07:41 PM
birdman birdman is offline
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does anyone run a crane blueprint cam "t" .469 lift in a 455?wondering how it idles?mine is pretty lumpy,but will idle at 900rpm,with quadrajet wouldnt idle under 1500 r.p.m with 850 holley

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  #3  
Old 05-19-2003, 06:26 AM
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WARPed WARPed is offline
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The RA IV (T) cam definitely will rump in a 455, there would be no question if you have a “cam” in your motor.

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  #4  
Old 05-19-2003, 02:44 PM
birdman birdman is offline
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thank you ,warped i thought it would i just couldnt get it to idle with the 850 holley but it idled ok with quadrajet.took holley off and rebulding it might have plugged idle air bleeds

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Old 05-19-2003, 08:12 PM
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goatseeker goatseeker is offline
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Birdman,
FWIW, I have an 041 cam in mine. Definitely idles with attitude. No problems idling at 800 with a tripower.

http://kurtspontiac.homestead.com/TimSimpson66GTO.html

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  #6  
Old 05-19-2003, 11:15 PM
momo ´70 formula momo ´70 formula is offline
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I got that exact cam installed straight up in my 9.3CR 462, I installed rhoads lifters for better vacuum at idle. It idles very smoothly with modified idle circuit on my q-jet.
The main problem when not getting a big cam to idle right is usually not enough fuel. My q-jet got drilled idle tubes, enlarged idle discharge ports, and enlarged idle restrictions. After that modification I could barely notice any drop in rpm when going from park to drive with my stock th400 transmission.
Idle in park 650rpm in drive about 600rpm.

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  #7  
Old 05-20-2003, 08:20 PM
GTOlev GTOlev is offline
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Do any of you guys trying the "T" have any port work done, if so what's the flow numbers. What's your performance ET ?

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