Rebuilt a Cuyuna 440.  I used the JLO book and it says .083"-.102" so I set the timing at .090" and it acts like it wants to start but I can't get it any farther then that.  I keep reading that a Cuyuna should be at .102"-.112".  If I change it does anyone think that it will make a difference?
							
						
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JLO vs Cuyuna
				
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I'd have to check my Cuyuna books when I get home to see what I set them at, but if it's for racing (of course it is) I'd go the the most advanced end of the spec, and if you're going to fuel it with good stuff, advance it a wee bit more.
Good Luck!Stuck in the seventies- not in the swamp.
(6) Attex, a Hustler, a Super Swamp Fox, (2) Tricarts, (3) Tri-sports, a Sno-co trike, 3 Dunecycles, and a Starcraft! ...so far
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