Even with Some others declare of the 20HP or even more enhance- on modified heads alone, this is solely not possible without having camshaft or pistons altered. Toyota has casted and machined all their four valve heads to really close and correct tolerances for Road (and rally) use. If they're https://connersphyp.blogoxo.com/26868801/an-unbiased-view-of-4age-20v-turbo-engine-for-sale