Brian..i had a buddy considering a change to alky..i had just ordered a new 1150 for my 447 SBC in my Trans Am..and told him he was welcome to try it. i put it on and set his fuel system like mine .we went to the track..it was a little warm..bad air..his car went .24 better than the BEST pass his Pro Systems gas dominator in the best of air..needless to say..i didnt get my carb back..lol..i called John and ordered a new 1..his stuff works great..you will be happy im sure John and Randy are Good guys and great to help with any issues