Would it be bad to tie in the fuel pressure regulator and the boost sensor hose into the same vacuum line/nipple? It'll be convenient if I could but sounds maybe bad too.
Also, I bought a negative battery cable splicer. The wire extends about 6 inches of length needs to ground on the firewall. however, the splicer(6in) is smaller diameter than the rest of the cable. Would this be a grounding issue? If I don't use it then I can't ground on the firewall(been that way since I bought the car)