from the Howard Catalog

Rob
given you have a worn out block and need lifter bore work just drilling out the lifter bores is cheaper than bushings
at least for the chevies and fords
too bad the large olds lifters are not readily available

see B3's 4th tech tip for a discussion of pushrods
with the angle of the SBM lifter bore longer pushrod is even more important

Harvey Crane really shookup the small click of LA Camgrinders
remember when he offered to "computer smooth" competitors masters
all tough in cheek inferring that that the grinders who were mostly doing no r&D were selling jerky cams
And he was right
Early Howards and some others (Ak Miller) were BRUTAL
others like ISKY were really long and gentile and hid the duration by using high checking numbers like .009 and 010 for hyd cams Isky did not like failures, returns
Many times he gave us replacement cams no questions asked- kept the customers happy
Isky's later Megacam series revs really well, and lasts and uses a different checking height on the opening ramp than the closing ramp- go figure
we sold a lot of them
Racer Brown, Winfield, Clay Smith, Bill Jenks (Potvin) new what they were doing) Chet Herbert was smart, Crower always had quality
Nobody any better than Dick Jones

On the flowing ABDC makes a big difference between WOT race motor and street
Looks like VVT is finally here
but my point was you do not want to pop the intake open immediately, rapidly or close it as late as possible and slam it shut- you get more flow mataching header and piston demand on the opening and energy/ velocity/ mass on the close
cheer
I'm gone for awhile