Turbo,
I didn't have any issue with your original question, other than noting that the use of the term 'gouging' to describe the work done at Heffners, DLM, SVSi et. al. seemed inappropriate without some justification. I didn't consider it a major deal, but then I'm just a laid-back California dude
I won't claim expertise in the details of producing a blower kit, either for a Miata or a Viper, but I would suggest that higher Viper prices probably stem from three main sources: (1) packaging difficulties in the Viper engine bay; (2) lack of economies of scale for a low-volume vehicle; (3) low price elasticity of demand for Viper products in general.
For my own selfish reasons, I hope Paxton succeeds in producing a reasonably-priced blower kit for the Viper. They have yet to demonstrate that they can do so. Given that one can obtain 510 RWHP normally-aspirated in a Viper for about $10K, the blower will need to produce 540+ RWHP at that price point to justify its additional weight and complexity.
TJ,
I think you're trying to be inflammatory with your responses. It does not raise my opinion of you.
That aside, you will not see 600 RWHP from a blower + ported heads as you propose. The stock fuel system will not support that power level. You could go to a secondary fuel system, but that would (a) exceed your stated price target and (b) introduce one of those dreaded compromises
If you want low-500s RWHP, and you already have intake, headers, exhaust and rockers, I'd strongly recommend going the heads+cam route. It'll be cheaper, more reliable, and lighter than a blower, and will still get you within 30 RWHP of the max you'd be able to make using the stock fuel system.
My fearless prediction: At the end of the day, the main market for a $8-10K (installed), 520 RWHP blower package is likely to be (a) owners who want the power without the noise level associated with N/A power at that level, and (b) those who just want something a bit "different". The customer tuner market's likely to remain in the $15K-$20K and up range, with power levels beginning at about 600 RWHP.