Greasecar is NOT THE BEST I repeat NOT THE BEST... Of the readily available kits Frybrid is the best hands down. I base this on having owned and installed the Frybrid kit before, I have seen many greasecar and DIY conversions, and I have also done several of my own DIY conversions. That being said the best way to go is a DIY as Frybrid is pricey, however if niether of those is viable greasecar is an "ok" way to go.

Zack