So I got a price on a new billet carb, and I am thinking of running my Sniper 4500 on my bracket car instead....But it has short 4" header collectors and no mufflers....Can you still tune it without mufflers?
Anyone bracket race one of these?
Yes it can be tuned with a short collector and no muffler. Put the O2 sensor in one of the header tubes about midway between exhaust port and the collector. That will give you a good reading for anything above 2000 rpm. You might be able to tune the idle also, or you might have to manually tune the idle. I tune several fast bracket cars (8.50 chassis cars) and that is the way we do it. Usually best if you can put the O2 sensor in the #1 or #2 pipe but any pipe can be made to work if you can't put it in a front pipe.
In your picture you might want to go into the #8 pipe up near the valve cover but it depends on your harness layout. I'd use the #1 pipe if possible but sometimes you have to do what you have to do.
