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Old 01-10-2008, 06:18 PM
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The Lunati 73943 1.26" springs that are on the Lunati 60102 cam card are the minimum spring requirements for that cam. They are good hi perf stock diameter drop on springs and work very well.
The spring specs that you show for the springs on the Summit heads are on the upper end of what you'd use on a agressive hyd flat tappet cam or a fairly agressive street strip solid flat tappet cam. or most of the hyd roller cams you'll likely use on a street car. They are just right for what you are doing.
But you do want to remove the inner coil as I recomended for the initial fire up and cam break in. Give it about a week of driving around. Get it all broken in and then reinstall the inner springs using compressed air to hold the valves shut, readjust the valve lash and change the oil and filter. Add another bottle of GM EOS on every oil change and you're good to go.
As long as your spring installed height is the same or very close to as speced they are well within the recomended pressures used on high performance hyd flat tappet cams. They are not too much spring for you.
If you're just not going to sleep at night with 130LBS seat pressure, change the valve locks to +.050" to reduce the installed spring pressure. about a $30 cure.
Where did you get the specs from for those springs?

Last edited by F-BIRD'88; 01-10-2008 at 06:30 PM.
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