Assuming 302 with Renault here,,,,you probably be better of using different transaxel mounts for sure. I used a pair made by Pontiac. It lowered the end of the trany by 1". Very small (easy) amount of cutting required for this.
Also, pay attention to your intake manifold. Edelbrock's RPM manifolds are slanted forward giving the impresion the whole engine is slanted which is not the case.