Question for the carb Guru's
#1
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Question for the carb Guru's
I need to pull the trigger on a carb for my engine. Its a 439 bbc with a target hp of 530-550 hp @ 6000 rpms. I'm using the new AFR 265 ovals with a weiand stealth manifold, stainless marine exhaust, and crane ignition. Bob Mandara is doing the roller cam and has me pretty much talked into a prosystem carb.. The only issue is $$$$$. I can get a nice used HP 950 for about half the price. So my question is, would a Holley HP 950 be a could carb for this set up? If not what would you guys suggest. What kind of difference am I going to see with the prosystem vs the Holley? The prosystem still isn't out of the picture but I'd like to get on the water sooner than later.
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The reason I say an HP 950 is that the way they are rated its closer to an 830 non HP holley or am I wrong on this. Bob didn't spec anything, he just said what i had was to small (780) and that he really likes pro-system carbs. I do agree that an 850 would be right but like I was saying above holley rates the two carb different. I believe one is a wet flow rating and the other is dry, so its confusing- an 850 in one isn't an 850 in another.
Last edited by endeavour32; 05-20-2010 at 06:12 PM.
#5
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The reason I say an HP 950 is that the way they are rated its closer to an 830 non HP holley or am I wrong on this. Bob didn't spec anything, he just said what i had was to small (780) and that he really likes pro-system carbs. I do agree that an 850 would be right but like I was saying above holley rates the two carb different. I believe one is a wet flow rating and the other is dry, so its confusing- an 850 in one isn't an 850 in another.
I also am using the Wieand Stealth and really like it.
http://www.offshoreonly.com/forums/g...-saturday.html
#6
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That was an interesting test. I was going to run a 780 holley that getrdunn has. I may still grab it and test it on the dyno and see what I come up with. A prosystems carb would be cool but I've just completely restored my formula and the money tree is running a bit low.
Last edited by endeavour32; 05-21-2010 at 09:53 AM.