Dyno a 7.5:1 400? Sure, why not?

Just curious. Why a 950 carb? Is it a double pumper? What would happen with something smaller like a 750 vac secondary?

Don't own a 750 vacuum secondary. The Q950 double pumper is my go to dyno carb. Works great for breaking in an engine because of it's reliability. The reason bigger carburetors haven't worked on smaller engines in the past is because they don't pull enough signal strength across the boosters. As boosters are developed and become more sensitive we may someday see where a 1250 Dominator can be used on a 170 ci Slant Six. Carburetors aren't necessarily too big, they are just insensitive...................like most husbands.

Well as we can see, a low compression engine can make good power. This is not new news. Back in the 70s when Detroit dropped the compression across the board it did not take long for people to discover that it was not the end of the world as far as making power and getting their car to run quick. The thing about compression is that even though it does not make a dramatic difference in power by itself, it has a big effect on the attitude of the engine. I've said this before and I'll say it again. Take two identical cars, one with 8.5 to 1 and one with 10.5 to 1 being the only difference and drive both of them. Without a doubt the 10.5 to one car will be a lot more fun to drive and will sound better also. Better throttle responce and more immediate torque also. Drag race the two cars against each other and the high compression car will probly win but only by a small margin. Now take the two c ars and start going up on the cams, identical in both and tbe high compession engine will start to shine brighter. Just an opinion.

Ah, but it is news. Most build suggestions say, "The first thing you need to do is get the compression up!"

Not a bad idea, but do you need to? Depends upon your goals. Yes I could bump only the compression on this build and make 305-320 horsepower with the 2bbl or 390-405 horsepower with the 4bbl. Then my customer has to go to premium fuel and he doesn't want to.

It's okay, we're building a 572 Hemi that will be around 11.8:1 compression and run on pump gas. It's what the customer wants......................