#10

07-01-2012, 02:24 AM

Super Duty D Super Duty D is offline

Chief Ponti-yacker

Join Date: Mar 2005

Location: IL

Posts: 683

Cough, err, bump, or ...... Question on spark plug heat range #.
What are you all running? 45, 44 or 43 ? (AC Delco)

44 was recommended on an older thread I searched and bumped up recently, but I wanted to ask here as well, any input is appreciated.

SDD

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73 SD TA auto.
73 SD TA auto.
74 SD TA auto.
74 SD TA 4spd.
72 442 W-30 auto, post coupe Bamboo. 1 of 19 total.
90 300zx TT 5spd.

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