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New Camshaft?

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New Camshaft? Empty New Camshaft?

Post  68galaxie March 12th 2012, 1:07 pm

Thinking of replacing my old Crane solid roller cam. There probably are better choices these days.
The current cam is: R-276/4334-2S-10
Lift: .749 int. / .738 exh
Duration: 276@0.050" int. / 286@0.050" exh.
Installed on 108 ICL

Engine: 503 cu. Inch BBF 4.39" bore X 4.15" stroke
12.5:1 CR
A429 Heads
Lift .200 .300 .400 .500 .600 .700
CFM@28" INT 152 237 293 358 367 374
CFM@28" EXH 117 161 200 224 244 257

4500 stall converter
Victor 460 intake plenum work done
Pro Systems 1050 4500 Holley
Crower HIPPO lifters (new)
3.91 gear ratio
C6 transmission

Street driven - Made 720 hp at 6600 rpm with out of the box holley 1150 rejetted to 97/97 and 35 degrees total timing

Worthwile changing?


68galaxie
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Post  rmcomprandy March 12th 2012, 1:33 pm

NO ... a newer "design" camshaft might get you some more torque however, horsepower will be somewhat the same.
A smaller new cam could make the engine much more fun to drive on the street.
Make the heads better or get a new intake and a carb first if more power is your thinking.

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Post  BOSS 429 March 12th 2012, 8:53 pm

as he says, that cam not bad enough to change, run it, work on other parts of the engine for now
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Post  68galaxie March 13th 2012, 10:23 am

You think the intake manifold Victor 460 and the pro Systems 1050 are holding back power?
The manifold hes been modified from stock, and the Chuck Nuytten carb was set up by Patrick at Pro Systems.

Suggestions?
68galaxie
68galaxie

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Post  Barney March 13th 2012, 10:49 am

You sent the carb to the right guy, I think your fine there.
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Post  68galaxie March 14th 2012, 8:52 am

Thanks guys.

I will keep the camshaft. I suspect the part throttle stumbling and bumbling will be eliminated with the new carb set up.
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