Ours ran good with stock jetting

That was 66-61-66 with the stock carbs and open 390 HiPo iron exhaust. A couple sizes leaner was best on the road for mileage but too lean uncorked.

Here is a good link on the FE site

http://www.network54.com/Forum/74182/thread/1053364506/Are+these+carbs+original+for+a+Galaxie+Tripower-

Lots of 6v setups on the FE site, some dyno tests and et/mph too.

Also try here

http://www.gerlecreek.com/documents/tptechnical.htm