im ordering a larger tb 52mm and will be making some data runs next spring as the car is parked for the winter now.i'm also planning the 749 swap. but right now i've got my prom pretty close and dont want to add any more variables into the swap.so what do you think will a larger tb throw off my existing prom to any extent?should i do the 749 swap and dial it in then add the tb or dosent it matter ?
thanks
pete