I just bought a bunch of Holley parts off a guy (including a complete 850 DP for $75 lol) and I have a bunch of metering plates that I don't know what they go to. Some have powervalves and some don't) I don't think I've ever seen 2 metering blocks with the same number. Is there a website or something that I can take these numbers and find out what they go to. Even the Holley website didn't list just metering blocks) THanks guys!!!!

http://www.holley.com/data/TechService/Technical/Carb%20Numerical%20Listing.pdf

Try this webpage. I tried to attach it as an adobe pdf, but is 70kb and max pdf is 19kb atttachment.

Holley will begrudgingly tell you over the phone what is standard metering block for a specific carb. But they act like you are hurting them real bad. I went right a head and hurt them real bad on a used Dominator I bought last year because I suspected the blocks were backward pri/sec I noticed one of them had a higher emulsion port in the main well than the other one did, and the one they had on secondary had a vac advance port where primary had no vac adv port. Only diff in P/N was a suffix. That dude didn't have a clue what I meant asking if the pri or sec needed the higher emulsion port. All he knew was part #'s.

Hope this helps

Well, if one of them is a 5247 please let me know. Thanks :thumbsup: