20 Valve engine is raising in reputation as the choice of engine in rear wheel drive conversions in cars such as the AE86. Nevertheless it does have some additional difficulties included over a 16V in changing it to run within a north-south route. Re: ITB Conversion on 16 valve 4AGE https://emiliohvsum.buyoutblog.com/31398794/5-essential-elements-for-4age-20v-turbo-engine-for-sale