I have a 1956 pontiac(canadian model) I've had it for about 2 years. when i fisrt got it it needed some work and i threw a 305 chev in it just to get it around. it was a used engine outta an old 79 presianne it ran very well and was good on gas i used a 350 turbo trans.for milage and low cost a decent 305 works good.. i changed to a 350 to have a little more fun but i paid for it in milage...