Changed intake gasket, now it won't start

if it still won't fire for ya- here is what I have done to find TDC - take the cap off the distributor - remove the #1 plug - get the damper set at zero - carefully run a screw driver into the #1 plug hole - if the screw driver contacts the piston right away (in fact, with a flash light you can see the top of the piston) - you're at compression TDC, if not - you are 180 degrees off. Once you are sure you have accomplished TDC make sure the distributor rotor is pointing toward the front of the car... proceed as normal.