... you want to hear, but maybe you´ll chang your mind after reading this:
http://www.goingfaster.com/spo/spo_tech ... ntral.html
http://350.streetracing.org/tbi.htm
http://www.thirdgen.org/newdesign/tech/ ... etbi.shtml
It depends on what you want to and can do (i'm pretty limited in my options because of german regulations), but i found some good points in there to be happy with my 305 TBI...