How do these sound?
Cale
these seem to me a bit big for twins even in front mount. one of these in a rear mount should easly support 500 rwhp at less than 8 psi in a single front mount they may choke the top end but will be torque monsters as boost should come early.
the price you will pay and time involed to get the carb right you can probally afford fuel injection and probally get more power.
Any way 1000 hp with twins I think you shoul shoot for 20 psi and have a big big intercooler.

