Replaced the spark plugs and changed the oil using castrol 20w50 holds good oil pressure under just about any condition.
It has the "350" so when I mash it it goes. I can beat almost anything on wheels including all imports. The only thing that will outrun me is the 7.4 "454" V8's - the 400's can't compete. I am very pleased with this truck!!! I can run 10's on the quarter mile - hows that for performance?!
10's? Man, you must have built that silverado to the teeth, EVERYTHING would need work... My uncle has a 72 camaro with a 350 that put out 460 some odd horsepower at the wheels, and it runs 11's...What does your MPG look like? haha.
Probably pulls 1G on the skid pad too...
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