my LT1 is the slowest
I don't care what you have in your car you don't know about everyone else's setup nor what gains they'll get from any given mod. To have LT's one must have an ORY or something equivalent and so even thru a stock cat-back the gains come out to somewhere near 15-25rwhp. RR's and a CAI will net you maybe 10rwhp.
The Best V8 Stories One Small Block at Time

