Craig, I have 1.65 ratio in HS and Scorpion. When setting up the rocker arm geometry, each brand required different pushrod lengths with the cam I have.
Also, the Scorpions measured 1.65 ratio with checker springs and 1.62 with running springs. The HS were 1.76-1.77 with checker springs and 1.65 ( maybe .01-.02 higher, don't remember ) running springs. I just use a small HFT cam, so no high spring pressures.
Hi Jim!
Last edited by tc; 03-23-2024 at 10:05 AM.
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