performance upgrades

i was wondering what performance options riviera have besides smaller pulley,CAI,thermostat,DHP,exhaust. im going to be doing a series 1 swap into my car. i know its not the more popular series 2 engine with more options/websites with parts but it was a great deal on the engine and trans. and i couldnt let it go by me. the best 300 i spent and didnt have to put a hand on the engine into it got in the back of the pickup truck :p :p :p