How to Check TOP DEAD CENTER???

[quick89gt]

Ok, here is the deal. My friend and I replaced the TFI module on his '90 5.0 notchback, and we forgot to mark where the rotor was in relationsihp to the dist. cap. However, we did mark where the distributor was in relationship to the block. It wanted to fire, but I assumed was firing on the wrong cylinders when we tried to start it, b/c the rotor had moved when we pulled the distributor up. I told him the best way to check T.D.C. so we could reset the distributor was to put my thumb over the spark plug hole, have him crank the engine over by hand....when it blows my finger out, it is on the compression stroke where we want it. then, take a screwdriver and feel the piston while he cranks by hand...and feel when the piston is all the way at the top....then, put the distributor back in, and put the roto on cylinder number 1. Does anyone else have any other ways to check T.D.C. that are better???? josh

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'89 GT, T-5,
Bored .030 Over, GT-40P heads, MAC 1 5/8" headers, MAC Off-Road H-Pipe, 2 1/2" Flowmasters, Edelbrock 65mm T.B., Trick Flow Intakes, Crane 2031 cam, 1.7 Roller Rockers, Keith Black hyp. flat top Pistons, Screamin' Deamon Coil, Champion Plugs, March Underdrive Pulleys, 255lph Fuel Pump, SVO Motorsport Clutch, Adjustable Fuel Pressure Regulator, Formula GP Suspension, MAC Upper & Lower Control Arms, FMS 3.73 Gears.
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