I have plans to swap my 91 Firebird's TBI with a LT1 and im curious what some time slips are of some cars that already have this swap. thanks.

 

Well not many people would go through all the trouble to put a LT1 in and leave it stock. So most if not all the time slips you will get will have alot of suporting mods with the LT1. So when people post there times ask for mods if it isent in there sig and somewhat copy there mods if you are willing to go that far to get as fast.

 

actually I think somewhere I still have some timeslips of when I was stock, I think I had 3.42 gears at the time, don't remember. But I know I was running something like 13.7 @ 103-5

I should be good for low 12's now

 

When my car had the stock TBI 305, it went 10.7 in the 1/8th mile. Now with a stock LT1, headers, 4 inch exhaust, and the factory one tire fryer 2.73 gear, on 17 inch wheels with street tires went 8.89 at 79mph. I need a gear and tires really bad. The LT1 was not touched internally, it had 103,000 miles on it when the camaro it was in got wrecked and the only thing I replaced other than a tune up was the intake gasket and valve cover gaskets.

 

A buddy of mine is thinking with my GTA 6-speed and 3.70 gear, that I am looking at low 8's, around 8.3-8.4 in the 1/8th