:jlammy: Yeah its costly i put about 4000 in my motor built already...but the accord stock motor can handle about 8 psi max, which with the right tuning you can bump it up to about 10-12 psi...quote" the right tuning" if tuned professionally, where there is almost or no detonation...you will be fine...I blew my motor running 9.83 psi, i forgot to ziptie the vac. lines on the manifold and detonated.....(imaidoit)...but its all preference, its about equal when it comes to boosting a stock motor or swaps...its all preference...any modifying hurts the POCKETS.... :cheers: