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Old 08-28-2016, 05:12 PM   #2
Marv D
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Join Date: May 2008
Location: hells training ground (aka Ariz)
Posts: 3,118
Re: aftermarket Carb vs. DIY build 750-850cfm

Used to be.... (famous old words hu!) Shops like Prosystems build a carb SPECIFIC TO YOUR PILE OF PARTS, and then wet flowed it on a custom bench, and live tested it on a mule motor he had just for live testing carbs before it went ou tth edoor. I've heard rumor of late Patrick has grown to a point the individual service for EVERY customer has slipped by the way side. But the old customers and long time friends still get the RIGHT carb. If yu call and talk to Patrick, and give him somewhat free reins on building the quickest carb he can for you,, he still serves up the BESTdamn carb out there. I've had a Braswell that I have to admit was a good carb, but Patrick at Prosystems still has my vote. Just don't call with general specs and asking about a 'shelf stock' carb,, cause that's what you'll get. But throw down the $'s to get a custom carb, wet flowed and dyno tested, set up for YOUR bucket of bolts and at YOUR general DA,, you'll get a super nice piece.

That said,, IF you have data logging and wideband O2,, you can build and set up a carb cheaper than yu can buy. Only makes sense right?? Guys like Patrick with an engineering degree in a field directly related to the flow of air and fuel,,, ought to get paid for their expertise. If you don't want to pay for that experience and expertise,, you get a mechanic that knows how to bolt parts on.... Or worse a phone jockey on the end of the phone line at a big mail order parts house that will recommend something,,, not necessarily knowing 'why'.

That all sounds kind of negative,, but honestly just trying to point out to think about what your paying for.
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