You cant forget Rotrex. They have some decent blowers. I was looking at their C30-94 or C38-81 which made 400+whp on a K20. Yes the K series motors have a great head, but its still a great option to look at for a LSJ/L61 with headwork. 400whp should be obtainable.

 

i've thought about them.. they could be interesting.. but they raise their price significantly some months back.. they used to be 1800 for the blower.. now they're like 2400 so they're the same price as a procharger/ vortec.. from what i recall they cant run that high of boost .. so you're limited in what you can do .. but if you plan well they would work out nice

 

elec you said you could or could not make the bracket?

 

I dont have the ability to machine it however when i get the correct one I could get one duplicated at a machine shop thats by me