Spark plug gap for 19cc domes and race gas

[Killdmycobra]

Should i be running a tighter spark plug gap with my setup? The motor internally is stock with 19cc domes with NOSS head, rocket pipes, timing + 4 degrees, and running 110 leaded 32:1. The ignition is stock. This motor has less than 15 hours on it.

 

Jeff

[hittintrees srh]

I have the same set up(plus a few things). and i use a stock plug gap.

 

No worries so far- infact the f**ker hauls some serious ASS!

[Ducman]

If your not getting any pinging or cutting out from the spark being blown out then you shouldn't need to reduce the gap. A smaller gap can reduce the chance of detonation. The BR8 spark plugs come at .030 out of the box which should work fine for almost everyone on pump or race gas. I've ran .028 and couldn't tell any difference. In theory you should get a better burn (more power) if the gap is wider .030 or .032 rather than .028 but its hard to notice the difference unless you are way out of tollerence.