i have a 84 trans am but the motor in it came out of a 87 305 and has a carb on it i have no idea where my timing mark is i put a new distributar cap on and all now she wont start trys to but wont i also put a new th350 trans and flex plate in it got read of the 153 tooth and put in a 168 also has aftermarket pullys on it i just have no idea where or how to go about finding it and setting the time if anyone can give me instruction on how to it would come in handy