i want to get rid of the TBI because its speed density instead of maf...my question is if i get the harness, TPI, runner EVERYTHING how long would the swap take? i really want a stock TPI system so i can run a vortech supercharger on it....

 

Are you swapping the entire engine or just the induction system?

swapping the whole engine took me roughly 20 - 25 hrs, working a couple hrs a night after work.

Just a manifold swap, figure 2 -3 hrs for the tpi
1-2 hrs for the wire harness
and probably the rest of the day for the fuel pump.

There's also some miscellaneous stuff that needs to be done, but I think you get the idea

 

id say i could do the pump in 3 hours tops...ive already done it once so i know what to do this time...im just swapping induction for now but it will probably eventually find its way on a 350 i thought id go ahead and get the TPI, decent cam, and heads on the 305 and when i can get the money put a 350 in or maybe a vortech supercharger either way the motor will eventually (could be a couple years) be a 350 TPI supercharged

 

Are chevy fuel pumps really that much of a pain in the ***? Although I've been fortunate enough to never have had to touch a chevy pump, I used to have to do fuel pumps on Jeep Grand Cherokees on a daily basis when I worked for Chrysler...and they were VERY easy...i dont imagine the chevy pump could be much different? (of course I did the jeeps while they were on a lift.

 

Not so much Chevy fuel pumps, as F-Body fuel pumps. They're a pain in the *** because the tank is tucked up above the rear end housing, so the rear end housing has to be partially disconnected (sway bar, track bar, track bar brace, shocks, and brake lines), then the exhaust system has to be partially removed and/or moved out of the way, then the heat shielding for the exhaust system has to be removed. Then on top of that, the tank has a long cockeyed filler neck that has to be carefully maneuvered out from under the car with the rear end and exhaust system sitting there in the way.

Here's how high you gotta jack that bad-boy up. Now tell me where you'd put the jackstands to get it that high if you didn't have subframe connectors? As said: pain in the ***.

 

I now dread doing my swap...thanks...haha

 

The first (and only) time I swapped my fuel pump, it took me around 8 hours, but that included a lot of screwing off and coffee breaks. I had more than enough room by putting the jack stands at the LCA mount. No SFCs in my car.

 

I paid the local shop $300 to do my fuel pump and it was well worth it for the horror stories I have heard. As for the TPI swap, if you know what you are doing, I bet you could have it done in a weekend. Friday night - pull TBI, Saturday - install TPI, Sunday - finsh up and tuning. If you don't know what you are doing, then a little longer. I had a friend who knew nothing about cars, took him about 2 months, but he knew TPIs inside and out by the time he was done.

 

fuel pump was a bitch but wouldnt have been worth paying 300$ for...isnt that bad...

 

So as a general rule it should take about 7-8 hours to complete this swap, if you know your way around??