When I first got the wagon, it had the original electrical engine parts, i.e. spark plug wires, coil, distributor cap. These of course gave horrible performance.
The valve springs were too short for such a big engine resulting in poor acceleration.
The roof lining tends to sag after the rain.
After a 5 minute warm-up this car hits 0-60 m.p.h. in just over 6 seconds, and a top speed just under 130 m.p.h.
360 cubic inch V-8, need I say more?
Wonderful smooth brakes.
Serious under-steer in sharp turns, but a very stable car.
Cool growling engine note.
Comfortable leather seats.
Beautiful styling with lots of chrome in a Cadillac sort of way.
Big, sturdy front and rear bumpers.
The valve springs were too short? what are you talking about?
Were you trying to install a bigger cam? I'm not sure how valve spring height has anything to do with the motor size or performance. Perhaps your springs were worn out or perhaps your confused as to what a valve spring is. As long as nothing hits and they keep the valves in sync with the cam, who cares how tall they are.