i have bought several kits from mike and eric has been awesome, i have went promod racing,and going adrl racing now i have my car in the 3.90 in the 1/8 and 5.97 in the 1/4. i still have allot of MM parts from my wedges days,now I am a Bae blown 526 HEMI, I had a 528 b1 wedge in a 2850 chassis car went 6.90s on a 200 kit and 7.24 on motor,and had b1-ts from MM parts went 6.80s on motor,and 6.40s on 400 fogger. I also have a 440 block that is a 543 on MM parts that my 235 red runs 240s 6.40s on motor alone, MIKE AND ERIC are awesome , there are times problems happen,but they went threw hell to get my stuff right,I have been a hemi dealer for 13 years and they are one of the true mopar performance guys,that run what they sell, try them you will be pleased.