carb kit question

[flyboy1400]

I bought a kit for my holley 1945 and it came with two different needle valves, looking arround i see other kits also come with the two different ones. wondering if anyone knows why, and which one would be the right one to use? Thanks!

 

[67Dart273]

Because that kit has two top cover gaskets, and three body to baseplate gaskets, it's obvious that kit was made to fit a wide variety of that model carb, through the years.

I'd day the needle/ seat that's correct should be obvious, in the way that it fits the port, the float, etc, and probably looks just like the (working?) one that was in the carb.

 

[flyboy1400]

ok i'll take a look at it, i bought the carb used and it had the needle/seat removed at somepoint before being stored for a few years. Having never rebuilt a carb before, I thought i'd check with the experts before starting in on it.