Ported 452 or Edelbrock RPM
Small followup.
I learned my lesson regarding valve lash and all those recommendations for cold lash and adding or subtracting certain amount. Please find table for this added to this post. It worked well for me with all iron setup, but did not with aluminum heads.
In my case subtracting 0.006 for cold was off to the point of unacceptable.
My cam manufacturer recommends 0.022" but given that I use 1.6 ratio rockers I always used 0.023" and it worked perfect. I tried cold lash at 0.017" and effect was slow revs and vibration at high rpm.
Finally in this setup subtracting 0.003" worked well. It gave me exactly 0.023" on hot engine and car still runs really nice till it gets to temp.
Small followup.
I learned my lesson regarding valve lash and all those recommendations for cold lash and adding or subtracting certain amount. Please find table for this added to this post. It worked well for me with all iron setup, but did not with aluminum heads.
In my case subtracting 0.006 for cold was off to the point of unacceptable.
My cam manufacturer recommends 0.022" but given that I use 1.6 ratio rockers I always used 0.023" and it worked perfect. I tried cold lash at 0.017" and effect was slow revs and vibration at high rpm.
Finally in this setup subtracting 0.003" worked well. It gave me exactly 0.023" on hot engine and car still runs really nice till it gets to temp.
