Carbureted LSX forum - proper carb

this is a 440 ci into a LSX block, pick up weighting 3200 with 13.0:1 RC in 5000 feet above sea level what would be the best size of carb for this setup?

assuming you have something other than stock heads a 1050 holley should do it.

Sounds like a job for the SV1, all day.

Sv1 all the way. Pat will build you exactly what you need

any idea of what kind of SV1 would be? what cfm?

1100 i think is the smallest.

http://i157.photobucket.com/albums/t74/ZONES89RS/sv1crb.jpg

http://i157.photobucket.com/albums/t74/ZONES89RS/sv1crb.jpg

could you give PN from it?

Pro systems will custom make a custom carb when you fill the specs out.

Once you get into the world of "real carbs" don't be afraid to call Braswell and see what he'd recommend.

god forgot to mention this truck sometimes is driven on streets just the way to get track, would this make a serious change? thanks

I am currently working on a 6.0 stroked to 427, 89 Chevy truck, will be using that same sv1 carb.

thank you there!

We had a canted valve 421 last year that had 330 brodix heads and was 13:1. we tried 6 different carbs and it liked the 2 smallest ones, an 825 and an 830. Dyno and track proven. I also have a friend with a similar 440ci motor and it wouldn't run with a dominator. Both motors made over 800hp. Not saying that's gonna be the case for you but just choose wisely!

As far as 4 bbl carbs, you do need to find that right one, but the sv1 is a different animal, like comparing tpi to ls1 efi. Maybe not that bad but you get the idea.

I race in Denver at over 8000ft regularly and my ls has gone quicker with my 1000hp based 4150 than any dominator ive tried so far
Good luck

Hope those SV1 carbs work out for ya several around my area have tried them,but not with very good results. And this after many times sending the carb back to prosystems. Patrick is definitly a stand up guy,great customer service. No question about that. He gave them the option to replace or try some more. Main issue seems to be off idle when going full throttle.

I've had great luck with the Quickfuel 950/1050 on that size setup!

i'll be trying with a 950 proform, hope this works! thanks for advicing guys

You should really go with a Pro Systems, great customer service and he builds it to your specs. I have had really good experience with those guys, top notch products.

A buddy of mine with a 9.0X ET Vette has the SV-1... claims it drives fine on the street.
You may have seen him ?

There he is on the top left ;) ---->
...............................................htt p://www.prosystemsracing.com/i//sv1shirtpic2.jpg