Quote:
Originally Posted by HWYSTR455
That's my-go to vid for half-lift method references, posted that link in post #10.
If you look at that vid, he never turns the crank/cam, so it doesn't matter if you have a checker spring on there or not.
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It needs a light spring cause he’s opening the valve to half lift and checking for 90 degrees at that point. He used a light spring in the video.
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Will Rivera
'69 Firebird, 400/461, 290 Eddy D-Ports, HR 230/236, 4l80E, 8.5 Rear, 3.55 gears
'69 LeMans Vert, XS 350, #47 heads, TH400, 10 Bolt 3.23 gears, work in progress
‘66 Lemans, 455, 310 KRE D-Ports, HR 236/245, TH400, GV OD, 12 bolt 3.73 gears - see it here:
https://youtu.be/RP_s1wJKm_Y?si=K0NZxoTyaGcj8Dcb
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