Hi I was wondering if anybody on here had an idea of what my car will run once I get the new motor in it. The car is a 92 Firebird with a 700r4 and has 3.73 gears. I have a 355 that I am going to build and it will have flat top pistons, 67cc world products heads, a 288 adv duration cam with 480 lift, a torker 2 intake with a quick fuel slayer 750 carb, it will also have shorty headers and a 2800-3200 stall converter. Thanks!

 

Probably somewhere between a 12 to 17 sec 1/4

 

What did it run with the old motor?

Without knowing how much HP the new engine makes (dyno sheet) and how much the race weight is (with driver), a guess is only going to be a wild guess. Best guess?? 13-15 seconds.

 

Welcome to TGO. Rather than getting a bunch of conflicting answers, which some may be kind of accurate, get more info after you get it done and use this calculator. http://www.wallaceracing.com/Calculators.htm

 

It ran a 16.50 with the stock 305 and 2.73 gears

 

Thanks! And I will try that calculator

 

Where in Minnesota are you (guessing of coarse)

 

I am in Itasca county

 

That's up "Nort" Beautiful area.

 

Yeah it is a nice area

 

Low-mid 13s IF you get traction.

 

It now has a Auburn posi with 3.73 and I will be buying some drag radials also

 

You gona need em! My last car on street tires only mustered low-mid 14s. Drag radials made it hit a 13.7 Nittos are nice. Its gona test the strength of that 10 bolt. Atleast you have the later 28 spline axles though.

 

Just a bit more Nort than me. I work in Park Rapids. It is definitely beautiful country the further up that way you get.