Just last weekend i put a intake manifold gasket on my buddies 97 blazer once we got it all back together we started it and i ran fine then we took it on about a 40min drive and it was fine, the next day it wouldent start just cranks so i tried to get it going of starting fluid but nothing, i checked it for spark and it has spark from the coil but i could not get the wire off the spark plug without breaking it, so im going to put a new wire on it tonight but im sure it still will not start, also when i pulled the cap off the distributor the rotor was in bad shape so i cleaned it off and i had my buddy go buy a new rotor which we havent put in yet, im not sure what the problem could be seeing that it ran fine. Any suggestions??