MOBS
The Mad Scientist
I've only had this information second-hand, but someone I know tested the 350 tbi in stock configuration(injectors mounted without any spacers) and the flowbench gave them like ~480cfm. I've also had the 350/290 once before, it was the model with 290hp/355lb-ft tq and the carb was the 750cfm quadrajet, unless they've changed the configuration, your's should have the straight-plug 64cc chambers. I'm just wanting you to understand you will be limited in future upgrades to that engine with the stock 350 tbi. You could always have it ported, or better yet, run a 454 tbi with the 350 injector pod; I think the edelbrock tbi manifold can be optioned to have the ports enlarged to clear the 454 tbi butterfly valves. Now when doing that, it's best to ofcourse get a custom tune, a tad larger injectors(or just increase your pressure 3-4 psi at a time till you hit the sweet spot). Oh there's a bunch of things to consider, if ya need any help with the aspiration, just holler.