Quote:
Originally Posted by TX Foilhead
In theory the small head should be more responsive down low but not as strong on the top end. The only thing that I would question is weather or not most of the simple carbs can use this as an advantage. A couple of tenths on the race track is a difference, 10 seconds going around the neighborhood isn't noticeable.
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I guess the 389/420cc= 390 is 92.6% of the size engine as the 420,.. So that may be why Lifan stuck with the big port head,.. Wish i could see the two head ports side by side.
Ah well, my heads on& paid for
guess i better do my best with it,.. Heck i'm gonna stay 280TQ cam and see how it does.
If it doesn't work/ scratch my head later.