Sparks degree key

[ss440ex]

Any one using a Sparks timming degree keyway?
I know it advances or ratards the timing,
is it noticable at all on the low end?

[ewalker302]

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:bandit:

[cals400ex]

it makes the throttle response feel more crisp.

[Silverfox@C&DRacing]

I would not recommend it in a 440kit, more heat is created when you add the key

[fmf400ex03]

i had 1 in mine if u have like a good set up, such as jets exhaust and filter. you will deffinatly feel it i sure did. my buddy had the same stuff with out it and i could pull on him no problem specialy off the line had some good pull gave me some easier wheel spin when rippin best 20 bucks i ever spent on my 400 for shor. its not much for power but its enough to make your rip that much harder did more than i thought was very pleased