sigh... :nonono:
FIRST OFF....
I'm going to scream it to the world.
OUR CARS (94-95...or ANY 5.0 for that matter) DOES NOT HAVE ANY SORT OF KNOCK SENSOR!!!!
SECOND...
If the car DID have a knock sensor, YES, a gear drive COULD throw it off. A knock sensor senses the harmonics of the metal on metal banging....when it reads knock, it pulls timing and adds fuel to prevent the detonation (whatever may be causing it)...REGARDLESS, you cars don't have knock sensors therefor you don't have to worry about that.
SO if you want to put a gear drive on there for the "noise" go for it. I personally think its about as gay as putting a whistler tip on a car to fool people into think you have a turbo. ALSO, its HARD on the valve train. A timing chain has some slack and a lil bit of stretch. A gear set doesn't. SO everytime a cylinder fires, it DIRECTLY, transfers that intial "beating" it forces down onto the piston...through the rod, into the crankshaft with turns (guess what) the lower gear on your sweet gear drive setup. That shock goes through the set, up to the cam with it beats your lifters, rockers, pushrods, etc. Its not really the "shock" but the REPEATED shocks. It can loosened up valve train components and cause havoc. ALL THIS mainly applies to a street car. If you're just doing 1/4 blasts...go for it, if you insist...but there is a reason hardly anyone uses gear drives any more...you don't need them and they're not the best option