Yeah, actually I'm gonna have to go with Streets suggestion if you got a little extra money, they are now $542 in Jegs but, there are probably other suppliers that are cheaper but, I'm not aware of them . Predators require minimal tuning, you got to ajust the 3 mixture screws but, that's it, they only use the fuel they need and they go from 390 CFM to 930 CFM and ajust themselves so they never undercaurburate nor do they overcaurburate making the engine have perfect carburation all the time. I just said 650- 750 preformer because I was not shure if you wanted an all Edle' setup or not.