17's or 18's

[ponchopwr70]

Hi I'm fairly new here, I have a 70 lemans that I'm going to be getting 17's or 18's in a month or two. I have a 355 sb with 450hp 450ft/lb a th350 and 3.55 posi. Tires now are 225/70/14 26.6" tall with cragars, i was thinking 17x8 and 9.5 with 285/40 255/45 torq thrust or 18x8 and 10 with 255/45 and 295/45 to fill the wheels wells better. Question is will I notice a difference in acceleration going to the 17's? how about the 18's? I know the 18's will change the gear ratio but will the weight change the acceleration? The cragars weigh 21lb and tires weigh 24lb. The tt2's weigh 23lb + 24lb for 17's and tires are 27lb + 29lb. For 18's they are 24lb + 25lb and tires are 27lb + 31lb. I just want the car to look good and have little effect on performance from the larger dia wheels. I'm open to idea's for different sizes. Heres a pic of the car now.


http://www.t-mobilepictures.com/phot...6gufc111vk1qrl
Thanks for the help. I cant sleep at night thinking about what to get.