John at jdrperformance.com does ALL my carbs we beat my Willys 350cfm stage 2 a few years ago after, I sent it to willys for a update/freshen for $250 I think, lol..
price is
$550 no core
7448 core $375
dorton core $250
You can usually get cores on ebay for 20-35
The performance of all 3 above options will be the same in the end.
Tell him you want a carb the same as Jeff Joldersma's, give him your motor specs and he will be able to dial it in really really close jet and air bleed wise. I have lots of time on the dyno making changes for him and getting them all worked out.
I have a JDR and crewmember bought me a stage two willys. didnt think and still dont think willys are performing any magic .the Jdr is every bit of the carb as the willys for lot less money.
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