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Old 03-12-2006, 08:25 AM
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350 cam selection help!?

I have a 3600lb 66 Chevelle Malibu. Four speed Manual Richmond transmission. Rear gears are 3.08. Motor is a 350, bored .030 with aluminum Trick Flow heads. 64cc Combustion chamber with 2.02/1.60 valves and either 15.7 or 12 dish pistons. Present cam has a 454 lift and 216 duration @ .050. I think my compression ration is close to 9.5 to 1 give or take a couple pts. I am looking to possibly put in a different cam. What do you guys think I should go with if I am wanting to improve my strip times. This car is a street/strip car but not a daily driver but is driven abit in the summer. Mainly in town and to the track. I will change the rear gears to 3.73s or 4.10s in the summer. But feel free to suggest cams based on the 3.08s staying as well.

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Old 03-12-2006, 08:34 AM
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Comp cams xe268 or xe274
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Old 03-12-2006, 09:00 AM
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There isn't a cam that's going to be best for both gearsets. Your present cam should be sufficient for 4.10 gears - 104 mph @ 5500 with 26" tires, that's a mid-12 second pass.
The compression ratio I come up with is either 8.9 or 9.2:1, somewhat low for a cam of serious duration.
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Old 03-13-2006, 02:43 PM
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Yeah I think my compression is a bit low. I am already as thin as I should go on the head gaskets as I have been told. They are .038 and the deck is -.001. So the only way to up the compression would be new pistons or shave the heads I guess.
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