I wonder if it's really more just the cost, the relative ease of tuning (admit it laptop tuning on the chassis dyno is much easier) or what....
I'm vexed because I have an 06 LS2 powered Trailblazer SS and it's hard not to like. I actually toyed with building a 4.125 stroke 427 iron block with trick flow heads for it....practically a turn key 550 horse daily driver with gobs of trailer pulling torque,
I guess I can justify it to myself only because I'd use it to pull my Mopars to the track, lol. Ironically with just a tune and a few bolt ons it's faster than the 67 440 GTX I had in high school
Add that your sporty Trailblazer SS weighs around 4800+lbs race weight, roughly around 1000lbs more than your 1967 GTX did.
