Quote Originally Posted by pat mccarthy
yes they work fine up to 6000 like mike said . and up but past that i would add the Ex ternal coil kit and a hop up module but i have a customer that has a 427 that as a stock HEI that runs past 6800. but if past 6000 you may want to add some better parts to it
pat, did you know you motor mount is broke in your pont.?