Holley's came on some fords, use a 600CFM 4160. My 4160(6919) is actually a ford replacement for a 302-390.
So this is what im taking away from this thread-in order to look original one would have to put up with the down falls of the autolite,or just stick the holley under it and make periodic adjustments. my needs are to be reliable with no fuss, yet stay with in a very tight budget.
Once you tune it right a Holley will run great, no need for periodic adjustments. Last 2006 i rebuilt my grandfathers factory Holley on his F150 and i tuned it, its 2010 and its still running fine with no adjustments. After i got the one in my maverick tuned it also didn't need periodic adjustments.
you may want to try a swap meet or try locating one on car-part.com. Just punch in the year,make, model and what region your in. It will give you a list.
Actually summit is making a knock off of the 4100 series carbs now too and they have had good luck with them. http://www.summitracing.com/parts/SUM-M08600VS/?rtype=10
I have a lot of experience on this topic. It's dated experience, but good experience nonetheless. In my opinion, a well built, well tuned Autolite 4100 is the best four barrel carb for stock to mild Ford engines. They are virtually trouble free. They are made with somewhat of a spreadbore design in that the primaries are slightly smaller than the secondaries. The 1.08 bore (480 cfm) is ideal for a stock 302 with a stock 4-bbl manifold. If you do some port work on the heads (or go with newer heads), go to an aftermarket intake, and add headers, you can use the 1.12 bore (600 cfm) version. If you add a cam, if you are one of the world's luckiest people, and if you can find one, the version used in 1958 had 1.18 primaries, was rated anywhere from 625 to 680 CFM (depending on which expert you talked to), and would work well on a little better than mild hop up.
