Are the ex valves in a slant rotating or non-rotating. I was looking at some spring options and this was a question Edelbrock asked.

The only Slants I know of with rotators was some of the exhaust valves on industrial engines. The automotive Slants did not.

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Thank you very much for the quick reply. Ya got any input on Edelbrock Preformer valve springs?

Keep valve spring pressures light unless you are spinning some high RPMs.
Most people use to much spring pressure in a SL6, especially for "street/strip" engines.
DD

When you say light can you give me some numbers I changed cams to a P4286678 and the spring is Edelbrock performer pt # 5877. Ishould be able to use my stock retainers with this spring also.

On a street SL6 that stays under 5,000 RPM I target 90 lbs on the seat and 200-220 lbs at full lift
DD