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So by the looks of it this has been covered about 2,000,000 times but lets throw another one on the pile. I just purchased a 72 rocket 350 with 7a heads, an Edelbrock 3711 manifold and 750 cfm carb for my 85 cutlass. I'm going to be using a 3.73 rear gear and 2400 stall 200/4r and wanted to know if the comp cams xe kit would be a good choice to throw in before I put it in the car??? Or should I leave it alone??? I think it has everything in the kit except pushrods. Would I need different length ones??? Here are the cam specs:
Exhaust Duration at 050 inch Lift:224
Duration at 050 inch Lift:218 int./224 exh.
Advertised Intake Duration:262
Advertised Exhaust Duration:274
Valve Lift with Factory Rocker Arm Ratio:0.475 int./0.480 exh.
Any help would be greatly appreciated. Thank you!

J-(Chicago)

I'd use the xe250h instead. 72 engines just don't have the compression.....

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Thanks J. As far as the 3.73 rear gear goes do you think thats to short? The car isn't going to be a daily, just a cheap toy to take out and romp on every now and then.

Tony72Cutlass'S'

Whats wrong with the cam that you've got in there right now? i've got a stock 350 cutlass that can roast tires all day long.

L69

I love the XE cams. Some will say the ramps r to fast and can cause some noise. But they sure produce a great amount of power.

Tony72Cutlass'S'

at 8.5:1 she still puts out a good punch!

I did a compression test last weekend, my lowest cylinder was 125 and my highest was 135, with 125,000 miles, i still can't see any reason to do a rebuild...

unless of course i came into some money, then i'd probably throw a 455 into there..

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There's nothing wrong with it to my knowledge. But its out of the car and on a stand and Im more trying to get at would it be worth throwing a cam in an engine that hasn't had a rebuild. Or should I just leave the cam alone and throw the engine in the car???

J-(Chicago)

3.73 would be nice with the overdrive. The cam swap will be well worth it so long as you do everything correctly.

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Ok got it. Thanks for the input guys. I'll keep you posted on the final outcome.

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Also, what kind of headers should I use for the swap???