Well.....like you said your willing to give up cost for reliability and performance then either motor can Yeild you 350rwhp... its just a different path with the KA & SR.
SR is like 205hp already boosted.... lots of kick ass parts to bump the power and its all the rage now adays...
KA is a great motor.... Iron block... 2400cc's lots of potential....
in the short run it would be easier to say yes pop in a SR and start to mod it.... but im partial to the KA motor. Its all good... its all Nissan.
Just get your check book out and ready for your goals.
