My Stratus was a RJ car also, best 1/8 was 4.70 at 150.00 . It was 2410 lbs with my 588 B-1 PSO headed engine. Only got a chance to race it 1/4 mile once and it went 7.39 188, It was at appox 4000 ft of air in August at RT 66 . Felt it would have been quicker with a 3 speed , it would sixty 1.06 most of the time. Good luck with yours.