87 firebird 4.3 tbi swap?

[87bluebird]

alright i got an 1987 pontiac firebird 2.8 mpfi v6 and automatic transmission and as many people know the drive train sucks. i dont want to spend a lot of money on the v6 cuz its not gonna be in the car for more than a year or so. cuz eventually i am gonna stick a vortec 454 in the car. but thats not why i am posting on here. the reason i am posting this is cuz i want to give the v6 a little more power cheaply while its in the car. i have been looking for ways to cheaply improve it and one thing i read about on s10 and blazer forums is a 4.3 tbi swap. but is that an improvement over the stock mpfi? if not what other intakes will bolt onto my engine and boost power? i am not talking aftermarket, i mean stuff i can get at a junkyard. also what all do i need to get to swap intakes?
thanx

[geoffinbc]

Keep your MPFI. Going to TBI injection is costly and not a step in the direction of power. Cheap upgrades would be Comp Cams 1.6:1 Magnum rockers. They are under $150. Maybe consider a cold air intake.