u guys think the stock lower manifold does a good job of evenly distributin the juice to all cylinders. i'm just curious if replacin the upper is enough to do so. should i wait for a one piece manifold, i.e. 350evo? the reason i'm thinkin if i should wait is because i'm plannin on replacin my kinetix soon. hmm.

 

well kinetix just released their one piece so look into that if that is what you are looking for,

 

i would think i should atleast get another upper, due to the front cylinders runnin rich with the stock piece. has anyone noticed anything weird with certain spark plugs associated with certain cylinders?

 

my plugs burn pretty evenly , i have the kinetix v4 upper and i polished my lower while i had it off to assist in the airflow to the front cylinders. no problems.