ok, im in search of a new throttle body. Get more air in the system and maybe pick up the responsiveness. Does anyone know of something like a big bore throttle body? And, secondly, throttle body spacers? yay or nay? they say torque curve and adds a small amount of power...anyone have good or bad experience?
A larger throttle body does allow more airflow, but the problem with this vintage truck is getting air out. The factory y-pipe and converter setup is an effective bottleneck/cork. Start there, then the next step would be headers, then the cam, then.....$$$$$
Yeah... wimpy factory exhaust gotta go first. Including the factory iron manifolds. Then cam, heads, intake, THEN you can worry bout what kind of throttle body/MAF/filters your new setup breathes thru.
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