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Old 05-22-2024, 10:51 AM   #39
1970cstblazer
All stock and staying that way
 
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Join Date: Jul 2003
Location: Elkland, PA
Posts: 1,664
Lightbulb Re: 1972 Medium Blue Highlander Blazer Resto

To make it clear, I am a fan of HEI systems. My mid-70's Pontiacs have had zero issues with them, especially after a recurve and maintenance to include replacing the pick up coil.

In these '67-'72 trucks, especially K series, I do not like them. The engine sits close to the firewall, and the larger diameter of the HEI distributor is not favorable. Also, the stock centrifugal/vacuum advance timing calibrations are for smog era low CR and wussy cams. Of course, these are easily addressed.

As with the points system, quality old stock parts are crucial. Most of the new parts available today are of much lower quality than OEM Delco Remy.
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1970 K/5 Blazer CST 4WD, Medium Bronze, 93k ACT. miles, 350, 4 speed, rear positraction, 16.5" x 8.25" HD wheel option, tilt, tach, vacuum, AM/FM, manual throttle...Dad ordered and purchased new 4/70. Currently frame off restoration finally getting close to completion..

1972 Cheyenne Super 20 2WD, DK Blue/White, 90K ACT. miles, 402, TH400, 4.10 open, tilt, tach, vacuum, A/C, AM/FM, manual throttle.. A mostly original paint never rusted Texas survivor...

2017 Sierra 1500 SLT 4WD, Black, 45k miles, 5.3, 6L80E, 3.42 LS, 20" polished wheels, everything but moonroof and 6.2...

2019 Canyon SLT 4WD, White, 62k miles, 3.6, 8L45, 3.23 LS, 18" wheels
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