My Mom's 86 would knock down consistant 25s on the highway at 65 - 70 mph. That car had something like a 2.21 rear gear so the low First in the A-998 was a real help. Funny thing, it didn't seem slow.
That's the engine I'm building for my '64Dog.
After 100K miles, there is virtually no ridge in the cylinders and all the valve seats and guides are usable. Those engines never had to work hard because the two-barrel carb wouldn't let them, along with the blue-haired old lady driving them!
