Just p/x my 93 rex for a 95 rex with full re-amemiya kit, ( very nice ) only problem is that the engine is making a pulseing sound and the revs pulse aswell. When driving if you keep your foot in the same position on the throttle you can feel the car pulseing still. Does anyone know whether it could be fuel related as it backfires a lot more than my previous motor or whether it could be a compression problem. Please help if you can as i have 6 months warranty on the car and engine!!!!!