Need fast help brand new 770 holley

Well, gee could be a LOT of stuff. If you put that on say, a stock 318 with single exhaust, then, yeah, it'll bog.

More info--

car, weight, gears, engine specs, etc??

I have not kept up on Holley. Is this a vacuum sec, double pumper, what.

What you running for cam, exhaust, cid, compression, distributor, timing, advance curve........?