Dave thanks for posting . Even though my RAIV motor liked the reverse split cam my E head 500" with a 268/272 solid roller liked tighter lash on the exhaust telling me it would have liked more on the exhaust. My 470/409 did not like more ratio on either side or tighter loose lash.
I think unless you put multiple cams in the same motor, try different ratios on the same motor, tighten loosen lash on the same motor you really don't know what it really likes. Why the stockers have shelves full of cams(can convertors )
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Skip Fix
1978 Trans Am original owner 10.99 @ 124 pump gas 455 E heads, NO Bird ever!
1981 Black SE Trans Am stockish 6X 400ci, turbo 301 on a stand
1965 GTO 4 barrel 3 speed project
2004 GTO Pulse Red stock motor computer tune 13.43@103.4
1964 Impala SS 409/470ci 600 HP stroker project
1979 Camaro IAII Edelbrock head 500" 695 HP 10.33@132 3595lbs
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