I think what Tom was trying to say was don't use the car motor mounts they won't handle any serious hp, i.e. turbo. Again on the exhaust use Stovebolts cast exhaust manifolds, you will find they better than the the tube headers. On the bell housing it looks like from your pic that you may have a truck bell housing with the motor mounts on both sides. If so then up to 68 they had a 4 13/16(?) hole for the tranny 68-72 they have 5 1/8 hole. Which is to say a lot of the later trannies will fit the 5 1/8.
btw the HEI distributor you have with the external coil was only used 74-76.
Do you have an idea what your plans are yet?
Larry
