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Butt in seat test and breaks the tires loose with ease at lower speeds is where I quit worrying about the timing. I bought a timing light in the early 80's and since the mid 80's I'm not sure where it is. I've used the "butt in seat" test since then and just advanced the timing till it made some clatter accelerating then backed it off a couple degrees and called it a day. I'm sure someone might object to my simpleton way, but back to, "breaks the tires loose with ease at lower speeds"?

YMMV.......

Joe
 

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12,239 Posts
you can put the welding rod in #6 hole if its easy-er to get to,
1 and 6 are up at the same time...
.
timing lights are cheap compared to pistons..
especially with most motors getting Hyper-glass pistons now days..
with a louder than normal exhaust, or stereo you wont hear the noise,,
and a knock sensor can hear it way before we can..
.
:texas:
 

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JJ, I hear ya, but the original post says 305. Has anyone ever put Hyper-glass pistons in a 305? And you're right about knock sensors being better than our own sensors. I'm thinking this motor has a timing mark issue and the welding rod trick would confirm this but a 305 that runs great with the timing questionable? I say enjoy! :rockon:

Joe
 
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