After years of hemming and hawing about it, I've finally gone and done it - I bought a Six Pack setup for my RB.

I know that the modern four barrels can generate about the same HP within 10 - 20, and the six packs can be a pain to tune, but... it's a six pack.

I've been reading a lot about the ProMax metering blocks and the jet plates and the throttle bases... the question I have is, are these worth it? Want to her from guys who have run both stock six pack setups, and those with the ProMax upgrades.