D-mailman said

NM9 I do believe that is what I said. If you subtract .010 from advertised lobe lift and do your math (multiply by rocker ration then minus lash unless it is hyd. cam) this will give you "true" actual lift at the valve. Works with any cam in the small block Mopar . Try this.

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D-mailman said

I always check the rocker ratio on any engine I build. I keep a block close by for testing purposes only. The Mopar factory mechanical '273' rockers are very strong and durable, I find them in the 1.45 range. Best being 1.51 and worst 1.41 . Also with the pushrod and lifter not being 'in-plane' with each other loses .10 of lobe lift . Very easy to calculate actual lift at the valve with lash. Subtract .10 from the lobe lift from the cam card and multiply by rocker ratio and subtract lash puts actual lift within .001-.002 . Works
.

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