the 188 can fit in 12v it's just really close

 

according to zach you need .05 flycuts to make it work in a 12v.

 

shame, but i will prolly opt for the smaller cam. no sence in running an engine that close in tolerance for a DD street truck. thanks for this info guys. will i notice a significant difference in how the power comes on? i have no plans for a bigger charger for the forseable future. 62/65 thing works great, just want to get off the line faster. i do not want to run any injectables either. stock head and will be till it gives up the ghost.