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#21
02-16-2023, 10:25 AM
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Attached is a worksheet I use, when I assemble a set of plug wires. Measure the ohms and the length, divide, and each wire SHOULD be pretty darned close. If one is more than about 5% different, then something is wrong. I've found bad crimps at the plug connector as well as wires that have a bad spot internally - I've seen problems with MSD, Accel, and Moroso. But Moroso Blue Max have overall been the least prone to issues, in my experience.
I use a set of these spark plug terminal crimpers - https://www.summitracing.com/parts/sum-900399 and they work great. The jaws are interchangeable, and I also have a set of jaws for Weatherpack/Deuthsch connectors. EDIT: I guess I can't attach a spreadsheet. I converted it to a .jpg Fill out the sheet as you assemble the wires, then you have something for reference later on, if you suspect the wires have an issue.
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'73 T/A (clone). Low budget stock headed 8.3:1 455, 222/242 116lsa .443/.435 cam. FAST Sportsman EFI, 315rwhp/385rwtq on 87 octane. 13.12 @103.2, 1.91 60'. '67 Firebird [sold], ; 11.27 @ 119.61, 7.167 @ 96.07, with UD 280/280 (108LSA/ 109 ICL)solid cam. [1.537, 7.233 @93.61, 11.46 @ 115.4 w/ old UD 288/296 108 hydraulic cam] Feb '05 HPP, home-ported "16" D-ports, dished pistons (pump gas only), 3.42 gears, 275/60 DR's, 750DP, T2, full exhaust Last edited by Lee; 02-16-2023 at 10:31 AM. |
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#22
02-16-2023, 10:17 PM
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I've been using Taylor 409's for years, no issues, no reason to change it up.
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1968 Firebird IAIIa 522 340 E-heads Northwind with XFlow TBI 4L80E 3.50:1 Rear 
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#23
02-17-2023, 01:00 AM
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I use the FAST 8mm wires,,,the spark plug boot angle is perfect. After all the years I finally bought a summit crimper,,,definitely makes the job almost enjoyable.
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72 lemans,455 e-head, UD 255/263 solid flat,3.73 gears,,,10" 4400 converter,, 6.68 at 101.8 mph,,1.44 60 ft.2007 (cam 271/278 roller)9"CC.4.11gear 6.41 at 106.32 mph 1.42 60 ft.(2009) SOLD,SOLD 1970 GTO 455 4 speed #matching,, 3.31 posi.Stock manifolds. # 64 heads.A factory mint tuquoise ,69' judge stripe car. 8.64 @ 87.3 mph on slippery street tires.Bad 2.25 60ft.Owned since 86' |
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#24
02-18-2023, 03:38 AM
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Moroso Ultra 40 wires for me. Very durable heavy duty pieces.
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James 1970 Trans Am Spotts Built 484" IA2, Highports, EFI Northwind Terminator X sequential EFI fabrication and suspension by https://www.funkhouserracecars.com/ |
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#25
02-18-2023, 02:13 PM
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Very happy with the Taylor StreeThunder wires I put on my engine. They come pre-terminated on the spark plug end with the correct 135-degree boots, and includes boots for HEI or points distributors. Probably took me about an hour to cut-to-length, crimp, and install them.
 
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 1966 Pontiac GTO (restoration thread) 1998 BMW 328is (track rat) 2023 Subaru Crosstrek Limited (daily) View my photos: Caught in the Wild |
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