[ChrisWhewell]

I put the XE-250H in my '67 K20 8 years ago.

350 w/ Vortec heads
dual plane manif with Q-jet
beehive springs from LS2
1.94" stainless w/backcuts, 3-angle cut
measured static comp 10.1:1 , lost 1cc per chamber due to polishing

With 4:56 gears in the Eaton, there was no way I was going to use a cam to pump out work in the higher rpm ranges.

Truck spends its life spinning 2000-4000 rpm mostly, no need to rev to 5000+.

I wasn't out to impress anyone with a throaty sound, so I put the quietest dynomax mufflers on it. It is soooo quiet !!

But tons of torque ! I can tow a house when the sm420 is in first gear !

Thanks to ppl on u-tube, for posting their xe-250h cars with louder mufflers, it is nice to know I can change mufflers and get a cool sound out of it, but I won't do it.

I selected that cam also, for long-term reliability.

What a great truck, paid 4k and got 6 years of WORK out of it, hauling stuff, etc., and now can sell it for multiples of its orig. price.

Yes !!