750 or 850 cfm Thermoquad

I've got one of each. My question is, in pursuit of the best throttle response as possible, is there a noticeable difference between the 750 cfm 360 tq with the small 1 3/8 primaries and the 850 cfm tq off of a 400 with the 1 1/2 primaries. I'm thinking that the 750 will be plenty enough carb for my mild 360 Magnum and hope that it will have noticeably more and crisper throttle response. What do you think???


Use the 850 cfm T.Q. The biggest difference is that the 850 will give you an extra 20+ hp over the 800. Enough for you to notice in hp gain, David.