Hey

I have a 1985 IROC Z Camaro with a 305 TPI. I am wondering how much HP the engine loses when it has 110,000 miles on it. How much do u guys think the HP and the 1/4 mile times go down. My car is pretty much stock with a ADS chip. So how much will my 1/4 time and HP decrease from stock with 110,000 miles on the engine.... Thanks alot

http://camaroz28.cardomain.com/id/56424

 

Do a compression check and a leakdown test and go from there.
I think this would more accurately give you an idea of lost horsepower than just guesstimating.