i just did a headgasket on my 94 sc300 with a 2jzge and put everything back together had the car at TDC and put the distributor back in all lined up with the timing lines on the distributor. the car wont stay on for more than like 2 seconds it starts revs to 3k rpms and dies. i have no idea what it could be we taped all the vacuum lines and all electrical so im pretty sure everythings hooked up please help!