I'm going to go read some Mike Gaines stuff.
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Just curious, why did you decide on the super stealths? I paid 2000 for the cnc'd stealth s that flow 320 @600. I don't know what the super stealths cost or what the advantage are?
Bobtile here's both links you can compare them yourself
440source
http://store.440source.com/Super-Stealth-Cylinder-Head-Bare/productinfo/200-1127/
Edelbrock
http://www.edelbrock.com/automotive/mc/cylinder-heads/chrysler/victor-bb.shtml
cdr please don't take what I say as a dig on you or your combo, it's not meant to be...
Edelbrock Victor is a better starting point, for a middle of the road cost/racing
or even great street aluminum head...
{IMO better finished ported head, probably less hassle/overall to get them to a higher performance level too},
Albeit they are more initial $$$, they are raised port design,
redesigned combustion chamber, for better flame travel/full fuel burn
& they need offset rockers too,
BUT it's money well spent, especially if your a professional cylinder-head guy
& do your own porting & machining...
There are better heads out there for Big CI combos, on "full on race engines" too,
but they are allot more money too...
Victors are really good middle of the road alum. heads, for dual use or race app.'s
our esteemed IQ52 can attest to that fact,
especially in the proper hands, with the proper combo/parts
440source sells the Super Stealth bare
right now for $399 each {that's cheap}
& they are a straight plug design closed 80cc Combustion Chamber,
with larger "raise exhaust ports in std. height exhaust mounting locations,
they're much more of a "stock appearing" head, especially when painted
Vs the Victor 72 cc redesigned heart shaped closed combustion chamber & angle plugs,
280cc std. - raised .650" 290cc intake
both versions with 100cc .250" raised exhaust ports
that "allegedly" flow 322cfm int./219cfm ex. @ 600" valve lift
with 2.19" int. & 1.81" ex. valve & seats
out of the box, before any porting
they can been had in CNC ported configuration too...