I'm running a Weiand tunnel ram w/ dual 450 vac sec Holleys on a 406 sbc. The carbs have been converted to center hung bowls and a metering block on the secondary side so I have them turned sideways. I had a Victor jr. w/ 700 dp before and the tunnel ram has more torque everywhere. I guess the older rams were designed for a 327 so a 406 tames it down some. No choke makes it a little cold blooded but when it's warmed up it has excellent street manners.