A stock '87 5.7 with a five speed dropped in to it. A little over 100,000 miles.

With a really good driver, what could you see this running?

With minor bolt-ons?

hmm...very vague...and i bet its gets moved..lol..but maybe low 15s stock and high 2 mid 14 with "bolt on's"...what kind of bolt ons anyways?...i'm probably wrong with the times but its a guess

There is only one way to find out.

What kind of 350 is it? If it is an L98 it could run a high 13 but if it is a smogger 350 than it could run 17's. Too many variables to accuratly say.

so you dropped in the 350? do you know what it is out of if you did? it all depends on were the 350 came from.

My Iroc had an L98 and a 5 speed. 3.42 gears. With exhaust, chip, and Aluminum heads(vette L98) it was running between a 13.8 and a 13.6

if its in great running cond... Your L98 will run mid to high 14s stock, and Mid to maybe low 14s with bolt ons and a good 60ft start


My Iroc had an L98 and a 5 speed. 3.42 gears. With exhaust, chip, and Aluminum heads(vette L98) it was running between a 13.8 and a 13.6

Realy 87Iroc? Those are some impressive numbers