Nov 23, 2025 · Hello All, Just looking to see what I should gap spark plugs to with a 454 using an Edelbrock 35830 EFI kit? I read 0.32-0.45, I'm leaning towards the high side. Thoughts? Thanks, Tom

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 …

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 …

Jun 28, 2023 · So if I went with an edelbrock rpm air gap intake and used the same carb I have now. Should I expect to tune the carb differently? Taking the hooker exhaust manifolds into consideration. …

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 …

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 …

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 …

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 …

Aug 8, 2016 · It gets extremely old. MAXIMUM spark plug gap on large, coil in cap HEI, .045, MAXIMUM on remote coil stock HEI, such as EFI-HEI, .035.

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 …