how much power should i expect from a 58mm throttle body, and a Mass Air flow Sensor? is the Mass Air flow sensor any good to invest on?? thanks

 

Throttle body, nil, unless you are pushing over 400HP.
Larger MAF on stock engine, maybe 5HP, more if the engine is making more power than stock. Best to use the money on a REAL cold air intake & cat back system.

 

Yup Pete nailed it, your just waisting your $$ on un-needed mods. The only reason people do them is because they are easy and kinda cheap, and it allows to add a "mod" to the list. Don't bother, save for some long tubes, LT4 intake and heads, or a cam. Yea it costs more but you will actually make the car faster.

 

If you get a new MAF of the same size, you're really not going to get anything, but it you get one of a bigger diameter, or you can just get a new MAF housing, you can get around 7RWHP, a vette magazine did a couple of mods to their LT1 vette and got 7RWHP and 9 RWTQ from the new housing, and it's only $50 instead of $100+ for a new MAF.

 

thanks guys, yes i read another post were they kinda ask the same question just after i posted this one sorry guys and thanks though, i'll go with some headers instead

 

I saw on ebay where a guy took the honeycomb out of the housing, ported and polished it. Is this the same thing as what you can get from jegs? And, will this mess with the computer?

 

Technically it's the same thing that you can get on Jegs, but the ones from Jegs may be a larger diameter, which helps more than just removing the honeycombe. As far as the computer, some people's cars begin to run lean, other's are unaffected, it's really kinda up in the air unfortunately.