Another episode of "What will it run?!"

flyfish said
Just to clarify my previous post, I'm not saying a bigger carb is a bad idea, it could help quite a bit....but it is not the magic pill that some folks think.

What I mean by that is, if your current carb is well tuned, on the OP motor there probably won't be a big difference due to the poor flowing heads, small cam, low-ish RPM range....in a nut shell, the demand for air/fuel mix is not as high as it would be for a motor that uses more RPM range, better flowing heads, bla bla bla.

I hope that makes sense. I too am a fan of the 950dp carbs (and I really would like one), and it might help some, or a LOT...but that help could be from the previous carb not being tuned correctly in the first place.

A good example of this comes from my buddies car. He has a well dialed in stroker Valiant, runs 6.60's in the 1/8th. He thought a 950 dp would be better than his smaller (not sure on the size) Demon carb...long story short, he tried for half a race season to get the 950 to out perform his other carb...and it didn't happen, it was not any better, but his wallet was lighter...he ended up selling it within a few months.

I argued the smaller carb/ bigger carb deal on a thread on Moparts several years ago when i was running a 950 on the stout little 318 i had and wanted to swap to a 750 to see if it night be crisper and 60 foot better. Brett Miller posted and said the car would slow down with the 750.......... it did, and both carbs were dialed in. I thought he was crazy.... he taught me a lesson
His little smallblock runs a 2000+ cfm carb on it. Buddy has a custom 1400 going on his W8 build that should be coming to life in the next few days
I had a 416 like yours a while back, ran about the same, you probably have better heads. I started with 3 carbs Patrick gave me to try from Pro systems( we used to work together years ago)
750/950/1000 all 4150 style, plus an 1100 dominator i had already bought from him. Dominator was easily the fastest, but a 1025 race demon i had laying around ran 99% as good. Suspect part of it was more hood clearance i had with the 4150 stuff over the one dominator.... the 1100. That race demon was a sweet piece, stupid me selling it.
Long story short, if the carbs are tuned, bigger will be faster... have NEVER seen it not be the case