Olds 350 roller cam

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Old Jun 11, 2015 | 08:02 PM
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Olds 350 roller cam

How difficult is it to install roller cam in my 350 olds.
Old Jun 12, 2015 | 02:31 PM
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It's easy. You'll need different pushrods, springs and most likely rockers to do it right however.
Old Jun 13, 2015 | 07:58 AM
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Thanks for the reply cutlass efi. I am looking at the lunati 20420712 cam. 231/239@.050. The heads are e Brock's rpm intake its a 4 speed car 3:42 gear ratio. Has any used this cam or have a better suggestion. Where can I get a set of valve springs for this set up. Thanks again for any suggestions.
Old Jun 13, 2015 | 08:43 AM
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Mark- Cutlassefi can provide you with a cam, for your engine, along with the rest of the parts you need. He has helped many here, including my self. Great guy to deal with.
Old Jun 13, 2015 | 02:26 PM
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Originally Posted by 73-s
How difficult is it to install roller cam in my 350 olds.
Whats the rest of your combo?
Old Jun 15, 2015 | 08:14 AM
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Originally Posted by cutlassefi
Whats the rest of your combo?
This is my combo olds 350 bored 30 over flat top Pistons procomo or e Brock heads milled to 64 cc e brock rpm manifold 870 holley carb. 4 speed car with a 3.42 or 3.73 gear ratio. I have not bought gears so I can accommodate whatever the cam requires. 1 3/4 super comp headers 2.5 exhaust. Let me know what you recommend cutlass efi. Thanks for your help.
Old Jun 15, 2015 | 09:22 AM
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Isn't that carb a wee bit too big??
Old Jun 15, 2015 | 09:39 AM
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I don't know is it. I'm running a 770 on my 73 cutlass supreme. 350 bored 30 flat top Pistons performer cam and intake 7 heads 2004r 3.73 differential. Car runs like a dream.
Old Jun 16, 2015 | 08:23 AM
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I think it's probably too big for a 350. I wouldn't bolt on anything bigger than 750 or that 770 on that small block.
I am running QF 850 on my 463, it was dynoed with it. I ran 670 on my very healthy 355 and it ran perfect.
Here is a good article about carb sizes.
Carb size dyno test
Old Jun 16, 2015 | 08:28 AM
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Thanks for the info on the carb. I have a 670 holley I will try and switch it out with the 770 that's running it now. Maybe I don't have to buy a new carb for the new build. Thanks for your help.
Old Jun 16, 2015 | 10:57 AM
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Would you suggest I do a port and polish on the heads. What would the difference be from a set of procompnon ported to a set of ported heads for this build. Thanks for your advice. Is it worth the money. I'm not afraid to spend the money. Just want some input on if it's worth it. Thanks again
Old Jun 16, 2015 | 12:04 PM
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Yes that carb is too big. A 770 should be all you need for the new build.
I'm an aluminum head fan so I'll say yes to the Procomps. You'll need an electric pump and of course a good roller rocker setup but imo it's a win-win.
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