I found a good deal on a 87 4runner with a broken timing chain and coolant in the oil.My rusted out 84 extra cab has a fresh 22r carb'ed motor ,the problem with the runner is the hood has been off for about 2 years in the weather .I know that the 22r and 22re are pretty much the same with a few changes.My question is will my 22r basicly plug and play or will I need to change anything with the fuel and ignition to get it to work?THANKS!!!