Author Topic: 140 off road cam first gen  (Read 627 times)

bcaudill317

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140 off road cam first gen
« on: June 25, 2021, 03:38:29 PM »
When running a first gen 140 off road cam how much vacuum should it have at idle?

bertfam

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Ed "Bert" Bertrand
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bcmiller

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Re: 140 off road cam first gen
« Reply #2 on: June 25, 2021, 06:39:10 PM »
Good information there, and the last post in that thread was by JohnZ. 
Bryon / 1968 Camaro SS 396 coupe - now old school 468 big block
1967 Camaro RS/SS 396 coupe L35/M40 - 4 generation family project
Looking for 68 Camaro with body # NOR 181016

BillOhio

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Re: 140 off road cam first gen
« Reply #3 on: June 26, 2021, 12:30:06 AM »
Interesting to read that.  That was before my car was restored.  After the engine was rebuilt, I could only get 4.5 inches of vacuum out of that cam.  I took it out.   I am not sure why but I did everything I could check and x33rs helped me quite a bit on tuning it. Sounded like a drag car but it was not much fun going to a car show and backing into a spot. 
1969 Z28, Burgandy, numbers matching, 12,900 miles
1968 RS 327 4 speed
1967 Plymouth GTX Hemi, 4 speed, dana
1961 Chrysler 300G convertible

CJP_69

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Re: 140 off road cam first gen
« Reply #4 on: June 29, 2021, 05:05:59 PM »

I'm around 4.5" also with a Crane Blueprint 140.
Chris

BillOhio

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Re: 140 off road cam first gen
« Reply #5 on: June 29, 2021, 11:31:12 PM »
I just was out tuning the new cam.  Small solid roller from Howards.  I had 14 inches of vacuum and acts real responsive.  I have not driven it yet.  Has a nice sound to it also.  My engine builder is pretty much anti anything other than a roller cam anymore after seeing a lot of problems. 
1969 Z28, Burgandy, numbers matching, 12,900 miles
1968 RS 327 4 speed
1967 Plymouth GTX Hemi, 4 speed, dana
1961 Chrysler 300G convertible