bigger carbs = more HP

i swapped from2x holley 4781-C to 2x 1250cfm dominators 80532-1 with the same timing and OD,fuel.i went from a prior 10.35/131 1.35 60' to a 10.21/134 1.439 60' with a lot of tunning left as the fuel idle air bleeds are too rich and i dropped the jetting from a stock 100 to 95sq jetted.there is more to gain in the 60' adjusting tire psi and fuel.i should be in the 10.0 range after all done or better.i weighed the car finaly at norwalk 3640lbs + me 250 dressed to race.

here is a video i just took at norwalk tuning the new carbs.10.21 pass.
http://www.youtube.com/watch?v=8-Lz9ByEhiA

What CFM were the previous carbs?

I always heard Roots Blowers love big carbs.

the other carbs were 850's[ holley]i went faster but had a blown head gasket last week.136mph.i found the heads bolts not as tight as thay should be.time for new studs.