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Old 07-17-2009, 05:40 AM
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Originally Posted by boredandglued
i got a 383 sbc (10:5-1 approx) with a comp cam magnum 292. .501 im wanting to run either a 3x2 intake (preferebly) or a 2x4 intake. the reason is primarily for looks my question is first is this a bad idea?
The main problem w/a three deuce set-up, IMO, isn't the set-up per se- it's how it's set up.

If the ignition advance curve is dialed in right, the carbs are sized and tuned correctly, choked correctly and have a progressive linkage, there's no reason it can't be every bit as effective- if not more so- as a dual 4-bbl. and can rival even a single 4-bbl. set-up.

A while back, one of the Pontiac mags did a test where they built a BG carb-based tri-power and tested it against a 4-bbl. carb and intake. The trips did fine. For ~$1500 it should have done well!

In your particular case, that cam has the makings for a low vacuum signal to the carbs, so tuning will require the usual procedure to get a good idle to mid transition. But nothing that can't be done in a leisurely afternoon.
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