[Tim Corcoran]

I am sure your car would be happy with a correctly tuned Holley 650 or properly built Quadrajet. I would toss the Edelbrock carb in the trash or sell it to some sucker on ebay.

[Pontirag]

easy Tim.... thats where I'm lookin for carbs for my offy.

[Juliano]

I have a 65 389 also. Vacuum at 800 rpm is 12-13. Edlebrock rpm with 750 edel carb with one size rod leaner...runs great. also have run the edelbrock 2 X 4 package they sell with the two 600 cfm carbs. vacuum goes to 14 - 15 and from a dead stop I burns rubber forever........I have gone on a 5000 km round trip to the same place on both setups...amazingly both burned the same amount of gas.............

[jwcfbd]

Thanks for the info guys. There are some ugly Qjets on ebay right now and I'm not sure which way I'll go. My first car was a 73 Firebird with a 350 and mechanical holly 4 barrel. I had to rebuild that carb countless amounts of times (kept blowing the power valve) but when it worked it worked great and I loved that you could always tell when the secondarys opened. One of these days I want to build a new engine with some kind of fuel injection on it but until then I'll keep it carbed.

[screamingchief]

Blown power valves are no longer a problem,all the new Holley carbs come with PV blow out protection,and it's super easy to retro-fit such to any older Holley carbs too,takes like 15 - 30 minutes to add that during a routine rebuild.

Plus back before that option was well known,that was why I always used the Holley electric chokes,no "sneezes" during cold start-ups,no blown power valves or such.

Anybody that's blowing their Holley power valves these days needs to brush up on their carb tech knowledge somewhat.

FWIW

Bret P.

[carbking]

You might find this article interesting:

http://www.thecarburetorshop.com/Car...eselection.htm

Jon.