Street performance tips, 225 slant 6

This is Cool. i have a 1973 dodge dart swinger special. its my first muscle car and ive had it since last summer. Its got a 225 slant 6 in it and i wanted some power too.i got an offenhauser dual carb manifold custom built for me and im running dual 2 barrel holley 500 class B racing carbs. this car gets up and goes. ive got an aftermarket header that all all cylinders re combined at 1 throat and then its ran through dual exhaust with straight pipes. 3 inch exhaust baby. im 18 and ive put 5000 into just the block of my 6. ive been spanking all the little chevys down here with their 350 4 bolt mains and 454s with high rise. its good to love a mopar. especially the 6