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305 cam lope

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Old Oct 30, 2006 | 01:27 AM
  #1  
92 Heritage RS's Avatar
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Joined: Jul 2006
Posts: 65
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From: Port Orange, Fl
Car: 1992 Camaro RS Heritage
Engine: 305 TBI
Transmission: 700r4
Axle/Gears: 2.73 open 28 spline
305 cam lope

Hey yall,
I'm wondering if there is a cam with decent lope to it that I can put in my 92 rs 305 that I'm doing a TPI swap on? I understand the vacuum issue involved that's why I'm looking for one that doesn't loose much vacuum. The TPI setup I'm going with is a Mass Air one so it's a little more forgiving. Ultimately, I'm after the lope more than anything, I also only want to change the cam, nothing else. If I'm dreamin' let me know! Thanks!
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Old Oct 30, 2006 | 07:51 AM
  #2  
jamon8's Avatar
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From: Southern IL
Car: 88 GTA "Cocaine"
Engine: 350 tpi
Transmission: 700r4
Axle/Gears: 3.27
roller right

comp cams has a bunch of cams for your tpi set up

Basic Operating RPM Range: 1,000-5,000 RPM
Intake Duration at 050 inch Lift: 206
Exhaust Duration at 050 inch Lift: 210
Duration at 050 inch Lift: 206 int./210 exh.
Advertised Intake Duration: 262
Advertised Exhaust Duration: 264
Advertised Duration: 262 int./264 exh.
Intake Valve Lift with Factory Rocker Arm Ratio: 0.450 in.
Exhaust Valve Lift with Factory Rocker Arm Ratio: 0.480 in.
Valve Lift with Factory Rocker Arm Ratio: 0.450 int./0.480 exh. lift
Lobe Separation (degrees): 112

08-300-8 is the part number
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Old Oct 30, 2006 | 10:00 AM
  #3  
Sonix's Avatar
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From: Calgary, AB, Canada
Car: 1982 Trans-Am
Engine: 355 w/ ported 416s
Transmission: T10, hurst shifter
Axle/Gears: 10 bolt, true-trac, 3.73
if you have a lopey cam with a TPI motor, it'll run VERY poorly. TPI is meant to operate well at low RPM, a lopey cam is the opposite. So you end up with the worst of both worlds
The cam jamon mentioned would work great, but won't lope.
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