Hi this is most prob a stuipd question to ask, but im looking in to doing a inlet manifold convertion on my E46 328 which has the M52tub28 engine, but will replace it for the manifold M53b30 from a E46 330i

But this is the silly question i know my 328 is a cable throttle which is different to the 330i but are the throttle inlets the same size or has the 330i got a larger inlet, if so would i gain any more power buy getting a larger throttle or just stick to the original throttle....

i hope this question is clear lol