A 99+ will not gain 100HP do to the efficiency of the motor already but a 94-98can reach near 100HP gain do to the rather weak stock RWHP. I have seen some 94-98 autos dyno at 98 RWHP and with Heavily ported upper and lower intakes combined with a well matched cam it is possible to achieve 190-200 RWHP
I could do each intake in a day, so two full days. And I have intakes sitting around my garage, so you don't need to drive here if that's what you mean. Each intake would be $100 + $30 core, + shipping, so it would be something like $140 or something close to that for each intake.
well lets say $30 an hour for labor and + parts. If you do the intakes, you might as well do the heads, too and to switch out the heads is about 8-10 hour job. So it would be about 250-300 for the labor and then for the parts Upper, lower, and heads would be another 350, and then parts (Gasket, head bolts) is about another $100. So all together it would be about $700-$800.
This is not a bad price at all and if you do some research you will find that it is about the same price as other companies would want if not a little less since we are adding the price of labor :thumbs2: