just purchased a turbo timer and a pair of dump valves anyone know how hard the dump valves ar to fit and where do i connect the vacume pipe as there are so many

im fitting them when i get it back from the damn garage ...

Do they replace the recircs or mount on boost pipe?

new to these cars so i think they fit onto the boost pipe with a 't' piece and then a small vacum pipe goes from the top to ????

sorry thats all i know

also i know i may come across as thick here but as i look at the engine i see no spark plugs or plug leads ,,,and fuel ..... am i just stupid

Here is an online manual for you!

http://300zx.co.uk/cgi-bin/manual.cgi

What make are the dump valves?

If they fit onto the boost pipes you will probably need some modified boost pipes that will accept your DV's.

they are Bailey piston type dump valves, silver - polished alloy. and i need to make or get a 't' piece to make them fit but dont know which vacuum pipe i need to cut into

You can either fit them in place of the stock recirc valves or get a set of hard pipes in front of the throttle bodies and weld them on there.

Either way it's a pain without a fitting kit as you'll have to make up the pipework yourself.