x2 ,a better choice !

MBHD
 Originally Posted By: efi-diy
Mark,

As an alternative to trying to get 300HP from the 250... consider installing a GM late model inline 6 from a trail blazer. They are either 275 or 290 HP stock.If you get lucky a complete wreck might be had for about $1500-2000.


12 port SDS EFI