Granted mine is a 340 base 416.. it made 590 hp
525 tq on the dyno.. I had the pan off the other
day and pulled the #5 main so I could check the oil
pump... the bearing looked new...that was about 600
miles on it and just beating on it on the street..
turning 7200rpm.... thats with my W-2s.. I want to
change over to my W-5s or pull the engine and put my
395ci in it... the 395 ran 9.50s in the race car.. but
for a street/strip rod I wanted the extra torque.. but
I didnt even advance the cam for more torque because of
the conv.. its already 5000 stall and I didnt want it any
higher... based on that article those Indy alum heads put
out more power by a lot... I'm running less cubes, less valve
diameter on both, less lift but I run a solid roller...my
heads flow 305 but dont remember if thats at .650 or .700
but I believe its .650.. when dynoed it was with a 850 cfm
and now I run a 1000 cfm throttle body multi ported injection
so I have no idea if its more,less or what on power.. that
was dynoed on 93 octane.. most of the time I run 87 octane
and beat on it pretty good(up to that 7200 rpm)..
I also use chevy rods at 6.125 and Diamond pistons
at 10.6 compression..could be 10.4.. I forget which
gaskets are on it now.. but it runs great on moose pi$$