The airflow can also be messaged a bit if you need more. Just like carb mods, you can knife edge the throttle blades, trim the butterfly mounting screws etc.
I can’t comment on the sniper spreadbore but on the FiTech throttle body simply trimming the mounting screws has repeatedly shown a 20cfm increase. Radius of the bottom of the throttle bores will give you a couple cfm as well.
Point is, if you’re wanting to go the throttle body injection route, but you’re in the edge with airflow, you can get a bit more out of it without a ton of work.
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-Jason
1969 Pontiac Firebird
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