Hey guys,
im new to the forum but have been around LT1's LS1's since i was 16 and started researching heavily into these motors and modifing every car that i came across with some sort of performance add-on...

Some questions.....
i have a 1999 Silverado 1500 Z71
its got the 5.3 with 90,000 miles....
now the big issue i have is deciding wether to do a heads/cam combo with manifold/TB/injectors/tune...or to just do a forced induction system...

If you guys could give me your input about such a high mileage case and if it wud be safe to do mods to the engine..