Need part #s & Vac Hose size for LT-1 350

[sheyski]

We were wanting to do a little research on pricing on these parts. We were told they could all play a part in a sluggish engine (sluggish in low RPMS, idles fine). Does anyone know these numbers by chance?

Also, would you happen to know the vacuum hose size (diameter)? Our boat is currently down at the lake and we have no way to check it.

These are the parts we are looking for:

Idle Air Control Valve
Map Sensor
Fuel Regulator
Throttle Position Sensor

Thanks.