Originally Posted by offthebeatenpath
That may work fine for the 258, I know you can swap heads and all that.
I have considerably less options for my 230.
Not sure what the flow rate is, but I would wager that the TBI unit from a Chevy 4.3l V6 (160hp) would work just fine on a 230 once you get it mounted. I'm running a 454 unit on a 401 (407 actually, a 47 cubic inch difference), and the difference between the 4.3 and the 230 is even less - 32 cubic inches.
There is also the TBI unit from a GM LG6 (or similar) 3.1l V6 that might be more in line with the power output of a Tornado. That might be a better match.
I still see a good amount of them whenever I visit the junkyards, too. Just something to consider.
The Tornado is one of the coolest engines around, is there any way you could take some videos of it running? There's not a lot of high quality Tornado videos around. Would love to hear the exhaust too!