Most street friendly boost solution to 1000+ hp?

[irishlsxer]

now were talkin boys! thx for chiming in, again let me reiterate, we're only looking for the dyno number to say we got it really. Very likely only 10-15% of driving will be at max boost if any. This car IS being built for semi serious autocross and some higher speed road race events, and will have an aftermarket sub and rear, so I dont want to completely blow the autox capabilities with twins if thats the case. So whats the verdict on twins for that purpose? I assumed a blower would make more even power and be more suitable for autocross, but as mentioned, i also assumed twins are the easiest way to make huge 'streetable' power and I was hoping the people that know wouldnt say its super tough to set them up for autox. What about heat? what form of FI is the WORST WITH HEAT???

I considered another 'bell'. here's one of my ls's kb'd.... made 700@11psi in a 4750lb vehicle in denver