My tmaxx 3.3 engine is really hard to turn the kick start Wont turn it at and I can barely crank it with my hand it's so tight. Also I have a 4 tec 2.5 that's pretty much a parts car now but the engine runs would it run the tmaxx well enough? If the engines can't be fixed I'll be upgrading it in a month or two what would be a good engine?