Postby smj999smj » Tue Jul 01, 2014 5:52 pm
I would start by testing your fuel pressure with a fuel pressure gauge and confirming there are no vacuum leaks. Then I would check for play in the distributor shaft and next a compression test, especially if there is a lot of time and mileage on the timing belt; it may have jumped a tooth. If it jumped at the crank sprocket or left cam sprocket, it would result in a jump in ignition timing (usually it retards it). So, putting a timing lot on it a seeing if the timing is out of spec might be worthwhile. Also, since it ran worse with the new wires, you may want to double-check your firing order.