Backfires

Scramblin_Jim

Legacy Registered User
City
Goodyear
State
AZ
#1
So what causes the engine to backfire as you let off on the gas? I have a 258 with a Howell TBI installed and a Flowmaster muffler.

Just put new spark plugs in. Checked for vacuum leaks. Put a new gas cap on to pass emissions.

So what causes the backfires?
 

John N

Addicted....Ex-SOA VP
LIFETIME
CJ-8.com Member
SOA Member
City
Rockville
State
VA
#3
Usually adjusting the timing will solve the issue.
 
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