Im about to be finishing my kswap and im just doing boltons. intake, throttle body spacer, hytech header, full thermal exhaust, and kpro. should i not waste my time with a bigger throttle body with the stock z1 intake manifold? i was debating a sk2 manifold but i feel like 400$ is not worth the 2-3hp gains

 

an rbc would be a better investment. even with the stock tb.

 

This should help

http://www.k20a.org/forum/showthread.php?t=115612

 

for complete results you need bigger CC injectors,bigger airflow needs much more fuel.

 

with just a tb? how bout no.