Im sure this topic has come up once or twice, but search didnt help, I recently got a pretty good price on a spi hi comp head for an 800 etec.
anyone have experience with this specific brand head, or other high compression heads, Good, Bad, ugly?
also this sled only has a y-pipe and hps trail can for engine mods. those with experience with the head and y-pipe, did you find the need for fuel controller?
how as plug cooler and piston wash?
any issues with knock/pinning closer to 6000ft?
please refrain from commenting if your comments consist of . "there junk", "not worth the money", "Waste of money". or anything like that, its already bought so save it!!
thanks in advance Nick