Quality upgrades?
Thanks for you help. I am looking to juice my 85 4kqs some.
Throttle body: I'm very skeptical of these. I think all they do is give you a bunch more air RIGHT NOW instead of being progressive like the stock one. It will feel like there is more power, but there really isn't.
Air box: haven't seen one, but unless it's pulling cool air in (and not hot engine compartment air) I don't see this making any big difference. The stock air inlet system is actually very good, aside from the turns it makes. Crammed into that corner with all the junk bolted to it, it probably doesn't get much better.
Big claims mean nothing without a dyno sheet. I have one for my car



