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Original Message
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| RE: 73 390 Cam |
| By Ross - 07/14/2003 1:20:12 AM; IP 12.81.181.133 |
Myself I like to run FE cams a little more agressively than a small block. But to be on the safe side, I'd shoot for 224 degrees @ .050 or less. Dont worry as much about the advertised duration.
Stock guides and rockers will be fine, but the springs can only take .500 or so. Some can slip a little more by, but .500 lift at the valve is a good rule of thumb
The Pertronix only lets you get rid of the points, the advance will still be there, you need it there. You may have got a bad one, but they usually dont go bad, dont be afraid of advance.
You wont "know" if the advance is optimized, however, a good rule of thumb for a mild 390 like you are talking is 10 degrees intial, with vacuum advance hook to ported vacuum. If it pings, pull it back to 8 initial
You could mess with special curves, and having a fancy distributor setup, but to be honest, with the setup you are running it wouldnt add that much. Money would be better spent on headers and a dual exhaust |
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