help stopping backfires
Thread Starter
6th Gear
Joined: Oct 2010
Posts: 6
Likes: 0
help stopping backfires
Have the occasional backfire on the passenger side. Im pretty sure its because of the racing cam that came with the engine (not too sure exactly what the cam is, just have that the guy i got it from put a racing cam in it). I checked all the spark plugs and wires, fuel/air ratio is good, timing is as good as i can get it, but i cant time it with the vacuum advance connected. Its a 1973 454 with hooker headers. I was wondering if anyone had a solution that didnt involve replacing the cam or doing an engine swap?
Race Director
Joined: May 2006
Posts: 16,528
Likes: 53
From: Dayton, Ohio
Race Director
Joined: Dec 1999
Posts: 19,610
Likes: 778
From: Forked River NJ
I love these statements "I put a racing cam in it" What kind of BS statement is this. There is no such thing as a racing cam. That was meant to impress you. Find out what the specs are on the cam and find out why you can't time the engine with the vacuum advance disconnected. Sounds like the guy that sold it to you has no idea how to setup the timing and carb.
Drifting
Joined: Mar 2011
Posts: 1,271
Likes: 1
From: PA
there is so much to installing a cam right. it has to be degreed and the timing chain/dots checked to be sure its accurate. you cant just slide it in. if he does not know the cam specs he sure does not know how to install one.
i doubt its the cam.
i doubt its the cam.
