midnightsadie wrote:
I agree with the right gears you could pull a freight train.
True, and they are a very good engine in general, however the proverbial freight train would still get pulled slowly at very high rpms uphill at altitude.
To the op, nothing wrong with your engine unless it's not running right.
Look at the stats on your old 350. Likely around 200hp/300ft lbs. look at the V10. Around 350?hp/375ft lbs. just approximately guys. Didn't look it up.
Look at the most powerful recent gassers, 8.1, EcoB, newer 6.x engines. They are around 400/400.
Take all those and lop almost 1/3 off the numbers when you get between 1 and 2 miles up from sea level. Except the ecoboost.
Look at stock diesels in the last 10-15 years. 300/500 ish up to now 400/900+. With many running 1000+ tq with mild tunes. Take away only a couple percent at altitude due to forced induction and you'll get a feel for why your 10 year old V10 doesn't blow your socks off.
Run it with your right leg fully extended going up hill and don't watch the gas gauge! You have a good engine.