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Old 09-20-2020, 07:15 AM   #1
BlouDon
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Join Date: Feb 2019
Location: Centurion, Gauteng, South Africa
Posts: 228
SBC 350 Aches and pains

Starts well.
idles well.
drives well on light throttle.

But from about 30% throttle, she starts to "backfire" - but through exhaust,left side only. The more throttle, the more backfiring.

This is what I found on #3exh when I removed the heads.
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Best regards, Philip

Chev: '70 C10 (350 V8 / 700R4 ) & '59 Apache ( 235, 3-sp )
Jensen Interceptor '74: Mopar 440(EFI'ed) / 4L60e
Jaguar: '72 E-type Coupe V12 & '74 E-type V12 Convertible & '80 XJS V12
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