Apr 12, 2018 · It's SOP to inspect & gap new spark plugs to your desired gap before installing them. They could have been dropped, thereby changing the gap, etc. NEVER assume they are gapped …

Jun 12, 2005 · Here's the problem, the stihl setting gage seems to set the air gap too tight, like 0.004" measured between the ignition module arms and the flywheel magnets using a feeler gage set. It …

Mar 1, 2026 · I have a Blueprint Engines 502 and I’m debating whether to run a dual plane performer rpm air gap or a single plane victor jr. Normally I’d slap the performer rpm on it and be done because …

May 8, 2009 · What is the best spark plug gap for my application? The spark plug is the point in the ignition system where electrical energy is converted into heat, consequently, the larger the gap the …

Sep 4, 2009 · What is your opinion on checking the end gap on the rings.... I you order a set for a lets say a 350 bored .030 over should they be perfect? when I checked the end gap on my set of perfect …

Apr 16, 2023 · Rule of thumb for a naturally aspirated engine 0.004" gap per inch of bore so in your case you should shoot for 0.016-0.017" (4.155 x 0.004) ideally. If your gap is 0.032" you probably don't …

Apr 3, 2025 · I'm not sure what gap my spark plugs should be. I have a 10 to 1 compression 496, iron heads that were redone with bigger valves etc. by a pro engine builder. I'm using Pertronix flame …

Nov 11, 2024 · I decided to a buy the AFR 4910 intake for my 502BBC with 265 AFR heads. AFR advertises the 4910 as the ultimate out of box match for their oval heads. For the record here are …

Jul 22, 2019 · The plug gap does, as it's the item with the gap under high pressure. The coil just supplies electrical energy at the voltage level that will cause the plug to arc. Think of the plug gap as a …

May 19, 2021 · Following the instructions in the workshop manual, I set the gap on the lower two metal "pegs" that face the magnets. However, this left the top peg with a huge gap and I couldn't get a …