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What years were the speed density systems on the 5.0's? The reason im wondering is to find some motor upgrades for my 86 f150. There are almost none available for that year but if i goto an 88 there is more options available. So if the motors were pretty much the same from certain years, im guessin i should be able to take the parts off of an 88 and fit em to my 86 right?
As you have probably seen from my other threads, im redoin my motor. cam, headers, porting the exhaust on the heads and port matching the intake to the heads with a 1" spacer. thats most of the work besides a few things here and there like underdrive pullys, and a throttle body spacer.