I was curious as to the efficiency benefits of sequential firing injection vs. batch fire. Any more power to be had? Id assume there is some gas mileage to be had from it. Does anyone make an upgrade for the 80's era TPI's which were batch fire? If so what does it involve (I realize it would involve a computer change but how would it organize injector leads into a sequential pattern?). Would the upgrade (if it exists) be worth the trouble and money?