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PostPosted: Sat Dec 22, 2018 7:21 pm 
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I recently acquired a new Comp hydraulic roller camshaft with my last 351C parts buy. The specs are: advertised duration 275/281, @ .050 224/230, lift 569/578, and lobe separation of 110. This is a custom grind 32-000-8, lobe profile is FC 3314B/3315B HR10. I do not have the cam card. I plan to get card from Comp soon. Will this camshaft make good power in a pump gas 4V build? The short block is .030 over with the L2379 flat top piston .010 in the hole. I have both closed and opened chamber heads that can be utilized. I really want to run the CC heads if it can be pump gas friendly. On the other hand the OC will need to be milled .020 to make a nominal 9.3:1. The Compression with the CC’s will be just south of 10:1.


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PostPosted: Sat Dec 22, 2018 7:39 pm 
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I think that cam should work ok if the car isn't too heavy and you don't mind having an idle with a lope.


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PostPosted: Sat Dec 22, 2018 8:27 pm 
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DaveMcLain wrote:
I think that cam should work ok if the car isn't too heavy and you don't mind having an idle with a lope.
The car is a stock curb weight 1973 Mach 1 with 3.25 gearing and wide band converted AOD.


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PostPosted: Sun Dec 23, 2018 5:52 am 
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Should work with pump gas, even with close to 10:1 compression, if you put it on a 106 ICL. It will peak at about 5500.

It will be pretty noisy with those lobes though, so if you hear some "sewing machine" noise under the hood, it's the cam's nature.

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PostPosted: Sun Dec 23, 2018 9:29 am 
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blykins wrote:
Should work with pump gas, even with close to 10:1 compression, if you put it on a 106 ICL. It will peak at about 5500.

It will be pretty noisy with those lobes though, so if you hear some "sewing machine" noise under the hood, it's the cam's nature.

Thank you. I appreciate your input. What would be your preference between the OC and CC heads? Do you think it will come crack 400hp with either combo?


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PostPosted: Sun Dec 23, 2018 11:00 am 
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I’d go closed chamber if it were me.

It will probably make 400 hp, I don’t see why not.

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PostPosted: Sun Dec 23, 2018 5:32 pm 
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wrobinson wrote:
I recently acquired a new Comp hydraulic roller camshaft with my last 351C parts buy. The specs are: advertised duration 275/281, @ .050 224/230, lift 569/578, and lobe separation of 110. This is a custom grind 32-000-8, lobe profile is FC 3314B/3315B HR10. I do not have the cam card. I plan to get card from Comp soon. Will this camshaft make good power in a pump gas 4V build? The short block is .030 over with the L2379 flat top piston .010 in the hole. I have both closed and opened chamber heads that can be utilized. I really want to run the CC heads if it can be pump gas friendly. On the other hand the OC will need to be milled .020 to make a nominal 9.3:1. The Compression with the CC’s will be just south of 10:1.
. Did a 9.3 compression motor with cam listed here. 470hp @6000 and was still climbing. Owner would only rev to 6000, this was open chamber d3ze heads and zero deck flat tops from Racetec. Yours should easily hit 400hp.


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PostPosted: Mon Dec 24, 2018 6:46 am 
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I did a 357 with unported 4V CC heads, with a Blue Thunder dual plane intake, 9.8:1, with a customer-supplied Comp hydraulic roller, 230/236 @ .050", .640" lift, 110 LSA. It made 420 hp on the dyno here.

You didn't mention what intake you had. That will make a big difference in hp.

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PostPosted: Mon Dec 24, 2018 10:44 am 
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blykins wrote:
I did a 357 with unported 4V CC heads, with a Blue Thunder dual plane intake, 9.8:1, with a customer-supplied Comp hydraulic roller, 230/236 @ .050", .640" lift, 110 LSA. It made 420 hp on the dyno here.

You didn't mention what intake you had. That will make a big difference in hp.

I have an Eddy Torquer but aim to purchase an Eddy Performer RPM. Originally I wanted a Blue Thunder or Scott Cook manifold because it looks more stock. What would be your preference?


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PostPosted: Mon Dec 24, 2018 11:15 am 
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Ahh yes good ol edelbrock Torker. Thats what we used,if you go over to Jay Browns site he tested nearly every cleveland manifold made. He has built a special adapter to fit fe fords that utilizes cleveland intakes. Of all his test the torker came in second in hp just below the weiand tunnel and duel 660 carbs. Very underrated manifold.http://www.fepower.net. I did spend some time at jays shop and also chatting him at pri show he is very impressed with torker intake for all around manifold.


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