I have a like brand new Stealth Holley 500 4412 two barrel carb. It was used last year for 8 nites on a limited latemodel. Carb was ran back to back on the dyno with a Willy's and it made 9 more hp (Can provide proof if needed). On the track it performs excellent as well as its a very driver friendly carb. It has the billet metering blocks and looks like NEW. Been maintained perfectly. Only reason for selling is owner changing classes and no longer needs a 2 barrel. This was over $850 new. Will take $425 shipped and also will sell with the carb spacer that has been found to make 5-6 more hp than anything else on the market (details won't be discussed about it till carb purchase is complete) for an extra $100. 815-990-8865