kinda feel dumb now
 

Today i solved my backfiring problem and I felt a little dumb,lol once I used the 302 ho firing order i was all set.I did call summit though and they gave me the wrong firing order for the cam i bought from them,not impressed,lol.

Re: kinda feel dumb now
 

Wrong firing order for the cam?????????????

Re: kinda feel dumb now
 

Glad to hear you straightened it out. Didn't a "Cam Card" come with the cam when you bought it?? It should have the correct firing order on it.

Vamp89,

You do know that there are two firing orders?? [15426378] and [13726548]. The later is the 351W/302HO firing order. The 302 went to the 321W firing order when the GT came back with a 351W marine cam in it. That is why you can't always go by what the intake manifold has on it. The cam dictates the firing order.

Re: kinda feel dumb now
 

No I didn't know that. Now I feel really dumb :D

Re: kinda feel dumb now
 

Don't feel dumb. You're only dumb if you don't learn from mistakes.

Now you know and I bet "You'll never forget this one again"

Re: kinda feel dumb now
 

yep, the 86+ or 85? 302 h.o. pretty much a 351 except for deck height and crank stroke....pistons probaly vary from flatops and domes and what not.