That's my point your assumption is the 750 too big neither carb has been fully tested on another thread your telling guy his 950 on a healthy big block is too big without any real proof.
According to the so called carb formula cid x rpm / 3456 x ve% = carb cfm, which would be 450-550 cfms for most 360 making peak power with 4500-5500 rpm. So basically every 4bbl 360 and under is over carb. including the 650 avs.
