what would be a safe size dry shot for my car with no head work and 115000 on the clock? or would it be a bad idea?

 

take it from me dont go over 100 hp. make sure you have enough fuel pressure or better yet a new pump. tune, 685 mallory or equv for spark retard . start small then move up . happy spraying

 

Honestly, you might want to look at a wet kit. Dry Kits for LT1's are not as effective as many other dry kits out there.

You absolutly CAN NOT run a dry kit without new injectors. And if your dishing out the cash for new injectors, you mind was well go with a Wet plate or nozzle kit. Under a 200 shot, you wont have distribution problems.

On a stock motor, with that kind of mileage, I would spray a 100 shot. Many spray more, but 100 seems to be a safe limit. Do a compression/leak down test first too to see any problems that might arise.

 

I would probably do some engine health checks to before spraying. Look into doing a compression test and cylinder leakdown test. If everything checks out, a 100-125 shot should be safe. Don't sacrifice on the safety items and you should be able to spray safely and still get more mileage out of your engine.