Well I'm a injection guy also i have ran the enderle set for about 4 years and i love them very easy to tune i think it was for me but from gas to alky i picked up a little over 3 but most will be around 2 i just never had any luck with alky carbs and boy did i try a few but i know a lot of guy's have great luck with them anyway B I'm thinking around a 5.72 just have fun what ever she runs it will be a blast. good luck Ron