Thanks for the input I agree. I don't get to biased on either engine. I've never ran a magnum engine except in my old ram. Great engine no issues. Makes sense to use what I got unless I open it up to find major issues which I doubt because it's a good running engine just has what sounds like after tick. Thanks again L.A. it is just wonder if I should use the J heads on it and put bigger valves or just go with some new aftermarket heads. Around 400 hp is where I wanna be ..more importantly into 7 sec 1/8 mile which should be easy lol
