Comp cams has a cam specifically made for the Speed Density computer, but before I went with that I was looking around a bit more.
<table border="0" cellpadding="2" cellspacing="0"> <tbody><tr><td align="right" nowrap="nowrap"> <table align="left" bgcolor="#ffffff" border="0" cellpadding="2" cellspacing="0"> <tbody><tr><td nowrap="nowrap" valign="top">
</td> <td nowrap="nowrap" valign="top">Intake</td> <td nowrap="nowrap" valign="top">Exhaust</td> </tr> <tr> <td nowrap="nowrap" valign="top">Valve Adjustment</td> <td nowrap="nowrap" valign="top"> 0 </td> <td nowrap="nowrap" valign="top"> 0 </td> </tr> <tr> <td nowrap="nowrap" valign="top">Gross Valve Lift</td> <td nowrap="nowrap" valign="top"> 0.519 </td> <td nowrap="nowrap" valign="top"> 0.519 </td> </tr> <tr> <td nowrap="nowrap" valign="top">Duration At 0.006 Tappet Lift</td> <td nowrap="nowrap" valign="top"> 270 </td> <td nowrap="nowrap" valign="top"> 270 </td> </tr> <tr> <td colspan="3" nowrap="nowrap" valign="top"> <hr noshade="noshade"> </td> </tr> <tr> <td nowrap="nowrap" valign="top">Valve Timing At 0.006 </td> <td nowrap="nowrap" valign="top">
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</td> <td nowrap="nowrap" valign="top">Open</td> <td nowrap="nowrap" valign="top">Close</td> </tr> <tr> <td nowrap="nowrap" valign="top">Intake</td> <td nowrap="nowrap" valign="top"> 29 </td> <td nowrap="nowrap" valign="top"> 61 </td> </tr> <tr> <td nowrap="nowrap" valign="top">Exhaust</td> <td nowrap="nowrap" valign="top"> 69 </td> <td nowrap="nowrap" valign="top"> 21 </td> </tr> <tr> <td colspan="3" nowrap="nowrap" valign="top"> <hr noshade="noshade"> </td> </tr> <tr> <td colspan="3" nowrap="nowrap" valign="top">These Specs Are For The Cam Installed At 106 Intake CL</td> </tr> <tr> <td nowrap="nowrap" valign="top">
</td> <td nowrap="nowrap" valign="top">Intake</td> <td nowrap="nowrap" valign="top">Exhaust</td> </tr> <tr> <td nowrap="nowrap" valign="top">Duration At 0.05 </td> <td nowrap="nowrap" valign="top"> 224 </td> <td nowrap="nowrap" valign="top"> 224 </td> </tr> <tr> <td nowrap="nowrap" valign="top">Lobe Lift</td> <td nowrap="nowrap" valign="top"> 0.3 </td> <td nowrap="nowrap" valign="top"> 0.3 </td> </tr> <tr> <td nowrap="nowrap" valign="top">Lobe Separation</td> <td colspan="2" nowrap="nowrap" valign="top"> 110 </td></tr></tbody> </table> </td><td>
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</td></tr></tbody> </table> <table align="left" bgcolor="#ffffff" border="0" cellpadding="2" cellspacing="0"> <tbody><tr><td nowrap="nowrap" valign="top">Part Number</td> <td colspan="2" nowrap="nowrap" valign="top"> 34-229-4</td></tr></tbody> </table> , my question is will this work ok with a speed density computer? Should I change my lifters, springs, ect with it or just get the cam and lifters? I have a 91 f250 460.

 

Moved to engine forum.