[Roadsters] highspeed backfire

[Gary Boone]

If the backfire is out the exhaust, this is a symptom of running too rich
during 
overrun (after lifting off the throttle).  If backfiring through the
carbs, it's 
too lean.




________________________________
From: Tim
<tputland at charter.net>
To: datsun-roadsters: autox.team.net
<datsun-roadsters at autox.team.net>
Sent: Fri, July 1, 2011 5:59:15 AM
Subject:
[Roadsters] highspeed backfire

Several weeks ago my 70 1600 (w GB/ dizzy)
started to backfire, once 
very very loud, at highspeed, when I take my foot
off the gas pedal. A 
buddy's 70 1600 (reg dizzy) does the same thing just not
as loud as mine 
does.

What could be causing this?

Thanks

Tim
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