Holley 0-80555C Model 4175 650 CFM Spread Bore 4-Barrel Vacuum Secondary Electric Choke New Carburetor<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>Power valve blow-out protection adds trouble free operation</li><li>Single feed fuel inlet with electric choke</li><li>Dichromate finish with 4-barrels</li><li>Includes vacuum for PCV， EGR， power brakes， distributor， air cleaner， and canister</li><li>100-percent wet-flow tested and calibrated for street drivability</li></ul></div><img src="http://ecx.images-amazon.com/images/I/51n711CURtL.jpg" noproxy>