I'm using my Nikon F70 (35ml film camera) and I want to take a continuous fast shot?

I'm using my Nikon F70 (35ml film camera) and I want to take a continuous fast shot… I have been playing around with it and researching and have found that if i make the shutter speed faster it will obviously shoot faster! But as the shutter will be open for a shorter time there will be less light for the camera so i'm wondering if i need to lower the aperture and make the aperture "whole" bigger so more light goes in? I just need some guidance on the whole issue… I have it current set on a shot speed of 100/1 so 100th of a second and it shoots fast! I'm just wondering what the aperture should be at and whether it would get good photos? Any advice on the matter would help lots! Thansk

That's why you have an exposure meter, learn to use it.

If you don't have a manual for your camera, you can download it from here - your first step should be to read it thoroughly;

http://www.butkus.org/chinon/nikon/nikon_f70/nikon_f70.htm

You have to look at the cameras light meter when your shutter speed is set to 1/100th. It will tell you if the shot will be too underexposed (dark). If it is, open your aperture more to let more light in. When the shot is exposed correctly, the light meter will exactly inbetween + and - (or if the camera has a little info screen, it won't have the underexposed/overexposed sign showing).

Fastest speed for continous mode (3, 7 frames per second) is reached when using shutter speeds of 1/250 and faster (1/500, … ) with manual exposure and manual focus in High speed continuous mode.
You need to set your camera to a wider aperture (bigger hole).So e.g. An aperture of 11 at 1/125 has to be corrected to 8 or 5.6 to reach a shutter speed of 1/250 or faster.
Everything that forces the camera to do it's own calculations (auto exposure mode, autofocus) will lower the amount of frames you can shoot per second.
Refer to the manual for further details. This time of the year I recommand using fast film (e.g. ASA 400 or 800) to get the desired fast shutter speeds and relatively small apertures which will help you with focusing.

Hope that helps.