I can understand where you're coming from with your changes.Bought a proform main body, got a wideband,added screw in p.v.c.r.'s added screw in i,f,r,'s and put in the time.Got a 99% great running carb. for a lot less than buying one, and learned a lot along the way. I think I need annulars to fix the only achilles heel I have left. Tune for the masses.If you can help dust another bowtie with tuning and basic common sense I say more power to you.