well selling my upper/lower eldebrock performer intake. Just figure i can get more power out of something else. i have eldebrock performer heads on it right now with the B cam. Can anyone tell me which intake would be good? Eldebrock performer RPM?? And i was also wondering how is the GT-40 intake with my set-up? reason i ask is because i might go with a kenne bell FlowZilla and it will bolt up to the GT-40 lower. i would hate to put my stock lower on with the new heads to just install the kenne bell.