As part of installing my new panel, I need to install Van's restrictor fittings for oil pressure, manifold pressure and fuel pressure. Some of the fittings can be easily attached to the engine but some can't. These fittings have a 45* elbow which makes it difficult to screw into some tight spots on the engine. My question is this: Does it matter if I attach the restrictor fitting to the engine port or is it okay to attach it to the pressure transducer manifold on the firewall? I don't think it should but I thought I'd get some advice.