It's a gray area for sure. Do you start with a decent part and try all kinds of tricks to make it do something it was not designed to do or just step up to the next level and have room to grow? I'd step up, you're always going to want more.
I believe Louis was led to believe by Hughes engines he was starting with a premium product that was capable of doing what he wanted. I still expect it to be close to what he wanted. I guess only the dyno will tell for sure.
I had also said this before but Hughes basically says these are great for guys who want 450-500 hp. Sounds like you're looking for more? If it were my build and I was doing what you're doing, I would not have even considered these things, especially since they are inherently flawed. Hindsight is 20/20 I guess. Don't mean to be a dick here, just pointing out there are better parts to start with, price not withstanding.
Are you talking about the RHS heads or the EQ heads? I ask because I remember when I bought my EQ heads from them that's the hp level they said they were good for. Later when they came out with the RHS heads I could have sworn they said they were good for 550-600 hp but I can't find it on their website now. Also what is this "inherent flaw" your referring too?
I had also said that guys who run these heads likely don't want to be bothered with re-arranging the valve layout since they're not being marketed as a 'max effort' part. I know it 'can be done' but at what cost? You're defeating the purpose of the part, which is basically a budget head.
Successful 'max power' SBM heads have the pushrod pinch issue resolved and use offset rocker arms. Stock rocker stuff is limited. Mopar knew this, hence the 'W' design.
I think are combos should be quite the same with the exception that i went with a hyd roller.
