70 350 Cam Recommendation
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Posts: 415
From: Texas
70 350 Cam Recommendation
Looking for suggestions as to the largest cam for the lower compression without over camming it
Factory 70 350 2 barrel motor (70k original mile motor)
Figuring 8-9 to 1 compression as its 2 barrel motor
Rpm intake
750 QF
Comp Rockers
Exhaust manifolds-no headers
3.31 gears
Converter doesn't matter as it will be a stick car
Thinking the generic 204-214 or engle 16-18 cam what say you....
Thanks
Factory 70 350 2 barrel motor (70k original mile motor)
Figuring 8-9 to 1 compression as its 2 barrel motor
Rpm intake
750 QF
Comp Rockers
Exhaust manifolds-no headers
3.31 gears
Converter doesn't matter as it will be a stick car
Thinking the generic 204-214 or engle 16-18 cam what say you....
Thanks
Last edited by Qwik71442; Nov 18, 2015 at 11:13 PM.
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Joined: May 2011
Posts: 3,688
From: Delta BC Canada
Question and suggestion.
I will suggest a JM 18-20 with Rhoads lifters since I know someone who has that combo and loves it.
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Joined: May 2010
Posts: 415
From: Texas
Good question as I really didn't want to change springs unless really needed, if keeping it under a certain rpms to avoid valve float I'm cool with that. My main concerns are camming it properly to the compression and don't really want it noisy as in modern fast ramp cams.
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Joined: May 2011
Posts: 3,688
From: Delta BC Canada
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Good question as I really didn't want to change springs unless really needed, if keeping it under a certain rpms to avoid valve float I'm cool with that. My main concerns are camming it properly to the compression and don't really want it noisy as in modern fast ramp cams.
Have you considered having Mark custom grind you a cam specific to your application?. If not then give it some consideration. If the Erson cam previously mentioned works with stock springs then going with it is likely a very affordable option.
Thread Starter
Full-time Taxpayer
Joined: May 2010
Posts: 415
From: Texas
skip the 18-20 and Rhoads if valvetrain noise bothers you. The 16-18 is still entirely viable with your stock springs and compression and won't need Rhoads.
Have you considered having Mark custom grind you a cam specific to your application?. If not then give it some consideration. If the Erson cam previously mentioned works with stock springs then going with it is likely a very affordable option.
Have you considered having Mark custom grind you a cam specific to your application?. If not then give it some consideration. If the Erson cam previously mentioned works with stock springs then going with it is likely a very affordable option.
Just talked to Mark he's going to grind one for me....
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Joined: Jun 2009
Posts: 4,293
From: Palm Bay, FL
Good question as I really didn't want to change springs unless really needed, if keeping it under a certain rpms to avoid valve float I'm cool with that. My main concerns are camming it properly to the compression and don't really want it noisy as in modern fast ramp cams.
It's not just about valve float, but installed height and coil bind are couple more factors that play a large role in how well things work together.
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Joined: Nov 2015
Posts: 685
From: So. Ca.
if you don't mind spending a little extra for the right cam, give mike a call or fill out his cam recommendation sheet and he will get back to you via email. he also carries the correct springs and lifters for your application. good luck
http://jonescams.com/
http://jonescams.com/
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