I recently purchased a 1988 Camaro and it originally had a 305 tbi. The guy I purchased it from removed the engine, stripped it down and had the block bored .40 over making it a 355 and installing the nessasary components to make it TPI. The car once it warms up will not stay above 1000 rpm without feathering the gas and brake to keep it above 1000 rpms. I dont want to burn up my brakes and this can create a tremendous safty hazard. He said it was the MAF sensor that was bad but when I questioned him more he said he did not change out the ECM. Im an old school carb guy and i've never played with TPI. My question is do I need to change out the ECM for the car and if so could anyone please provide any info they know on this subject. Id really like to drive my Camaro