Tho I'm a firm believer in k.i.s.s. & checking TDC & a basic compression test is always a good idea I'm gonna go out on a limb & opinionate that the long block is healthy & that includes the cam timing & that the the prob is: ECU going bad, plug wire order wrong, VACUUM LEAK, rotor phasing

live every 24 hour block of time like it's your last day on earth