SSLS1 vs. Altiery54
i'm sorry bro but i don't buy that one bit, i have the bolt-ons with a stall in my SS conv. and i get 22-23, my wife gets more cause her foot isn't as heavy as mine. you pro-charged with bigger injectors doesn't equate for better gas mileage. a buddy of mine with a 5-speed mustang GT with bolts-ons was barely getting 25mpg and he was using a note pad to track it all. lol, that was funny to me seeing that its a sports car.


