Thread: 478 to SM420
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Old March 10th, 2017, 10:45 PM
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Default Re: 478 to SM420

Sounds like BBV6's info on 401 is a good compromise. Be sure to take some Video of your 305 running so that when you sell it, folks can see it ran good. Did it smoke after sitting for years or it just smokes? If it's after sitting, could "tighten up "after awhile, after some thermal cycles. Does it smoke out the exhaust or breather or both? A bunch or a little? I had a 56 Chevy as a kid and ran it on 90 wt gear oil...and it still smoked. The gas station guy would ask me three times if I meant 90 wt. Don't do that.

Last edited by AZKen; March 10th, 2017 at 10:55 PM.
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