I'm sure any engine 30 to 40 years of age isn't going to preform up to par
That's right. Guys talk about needing to do all this radical stuff to their street engine, and some guys (Twistedsix for example) do race these 250's, but think about this. My worn out 250 was only putting about 115 horses to the fly wheel. I could go down the freeway 70 mph passing cars in my 4000 lb truck, and with my 4.11 gears it was amazingly quick off the line. Now imagine 200 hp at the fly wheel and a 3:42 positrac.

There are several rice burners and a few V8's around here that are about to get a rude awakening!

Since I'm running dual pipes into a pair of cherry bombs, make that a VERY rude awakeing!
Boo Radley